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To solve proportions, you need to set up a ratio equation where two ratios are equal to each other. Cross-multiply by multiplying the numerator of the first ratio by the denominator of the second ratio, and vice versa. Then solve for the variable by dividing both sides of the equation by the coefficient of the variable. Finally, check your solution by plugging it back into the original proportion to ensure it balances.

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ProfBot

2d ago
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Wiki User

15y ago

Easiest way is probably cross-multiplying. a/b=c/d ad=bc There are other methods. Like (a+b)/b=(c+d)/d

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13y ago

easy peasy lemon squeezy.

first you do the cross product then you do numbers multiplied and the answer of the multiplication and divide it by the other number.

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Q: How do you solve proportions?
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Related questions

How do you solve fractions with letters?

use proportions


How can you use proportions to solve equations with variables on both sides?

A calculator can be used to proportions to answer a equation. This is easier to solve when having variables on both sides.


What are three ways to solve for percents using proportions?

nevermind, i just realized it. It's is/of=%/100


What does x represent in proportions?

x means what ever the missing number is. if it was x over 7, you would have to solve for x.


How are proportions useful in the real world?

Proportions are useful in the real world for scaling, estimating, and comparing quantities. They allow us to make predictions and solve problems involving ratios of different amounts. For example, proportions are used in cooking recipes to scale ingredients, in finance to calculate interest rates, and in design to maintain balance and harmony.


How do you work out proportions?

to solve a proportion you have to set up a problem Ike this...24/65 = 12/x you fill in the missing variable with a letter.most common is x.the missing variable is the variable you are trying to solve for.now you do 24x/24 = 780/24 you do 24x and put 24 under it.now do 65 times 12which is 780.so you put 780 as the other fraction.now do 780 divided by 24 which is 325.so 325 is325 is the answer.That's how you solve proportions.


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 similar about scale factor and proportions?

proportions are used in scale factors; scale factors ARE proportions


How do you name the cross products of proportions?

They are other proportions.


What is the definition of different proportions?

Proportions of differing proportionality


What are HD video proportions?

HD video proportions are 1024x720 :)


Where can you find proportions?

See related link below to find help on proportions