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What is x in solving the proportion of 3 over x equal to 2 over 7?
Wiki User
∙ 13y ago
x= 10.5
3/x = 2/7 so multiplying by 7 this is the same as 21/x =2. Multiply by x to get 21=2x. Divide by 2 to get 10.5 = x
Wiki User
∙ 13y ago
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What is a true proportion?
A true proportion is when two ratios are equal to one another. To prove this, you need to find the cross products of the ratios and see if they are equal. An example of a true proportion are the ratios 1/2 and 5/10, if you take the cross product the result is 2 x 5 = 1 x 10, which are equal.
What is the ratio of 2 integers where the denominator doesn't equal 0?
That defines a rational number.
Is 2 over 3 is bigger than 7 over 9?
No, 2/3 is equal to 1.667 and 7/9 is equal to .778.
When solving a system of equations what does 4 equals 4 mean?
three things: 1) that the value of 4 is equal to the value of 4. 2) you did not obtain any revealing information. 3) your strategy for solving that system of equations was not good.
How do you solve a proportion if a variable is missing?
You can look at the ratio that is given to you for example in geometry... It is used to compare two ratios or make equivalent fractions. Use the ratio and make that the denominator of the proportion and cross multiply.A proportion will help you solve problems like the one below. Jane has a box of apples and oranges in the ratio of 2:3. If she has six apples, how many oranges does she have?Before we begin to set up proportions for a word problem, we will concentrate on solving proportions. Remember, a proportion is a comparison between two ratios. The proportion shown below compares two ratios which are in the fraction form. 1 x - = - 2 6
What is the answer for this proportion x over 4 5 over 10?
x is equal to 2.
Will 3 over 4 and 20 over 30 make a proportion?
3/4 and 20/30 does not make a proportion. 20/30 = 2/3 3/4 does not equal 2/3 so it is not a proportion.
A statement that 2 ratios are equal?
A statement that two ratios are equal is called a proportion in math. An example of a proportion is 1/2 equals 2/4. In this proportion, if you cross multiply, you find that 4 x1 is equal to 2 x 2, which is a true statement or proportion.
Is 120 over 2 proportional to 360 over 6?
They are both equal to 60, so yes, the proportion is the same.
How are cross products useful in solving a proporton?
The cross products are equal. If there is a variable you can make that variable so it will make the proportion equal. 1/2=x/14 1x14=2x So x=7
Can more tha 2 equal ratio be called a proportion?
YES. A statement that two ratios are equal is called a proportion.
What is X if X over 7 equals 2 over 5?
if x over 7 = 2 over 5, you set up a proportion. x should equal 14/5 or 2.8
Can you give me 2 examples of a proportion?
1/2 and 2/4 They are a proportion cause when you simplify 2/4 you will get 1/2 and they are both equal
What is the word for an equation stating 2 ratios are equal?
proportion
What is a true proportion?
A true proportion is when two ratios are equal to one another. To prove this, you need to find the cross products of the ratios and see if they are equal. An example of a true proportion are the ratios 1/2 and 5/10, if you take the cross product the result is 2 x 5 = 1 x 10, which are equal.
How do you solve proportions using cross products?
say it is 1 over 2 is equal to x over 4 you multiply 4 and 1 then 2 and x and you get 4=2x. Solve for x = 2. So the equivalent proportion is 2/4.
What is the ratio of 1over 4 and 2 over 3?
It is not a proportion because the fractions are not equal.
