The question, as stated, cannot be answered because it does not state whether it is 3/4 turn or 4/3 radians or 3/4 degrees. However, 3/4 turn is the most likely and 3/4 clockwise turnis the same as 1/4 anticlockwise turn. That is turn 90% to your left. And then walk 5 steps.
Five half-steps make a perfect fourth.
7
three and one fourth
the answer is five eighths.
5 3/4
Three fourths minus five tenths is one fourth.
1 and 11/12
2 1/4
Five sixths of an inch is larger.
five eighths
15/24
3.75