Solving Proportions

Front

What is a proportion?

Back

A proportion is when two ratios are equivalent and show the same value.

Front

Are the ratios 1/2 and 2/4 proportional?

Back

YES

Front

Solve the proportion: 3/4 = x/12

Back

x = 9

Front

What does it mean for two ratios to be equivalent?

Back

It means they represent the same relationship or value.

Front

Solve the proportion: 5/x = 15/45

Back

x = 3

Front

If 2/3 = x/9, what is x?

Back

x = 6

Front

What is the cross-multiplication method?

Back

Cross-multiplication is a method used to solve proportions by multiplying the numerator of one ratio by the denominator of the other ratio.

Front

Solve the proportion: 8/10 = x/25

Back

x = 20

Front

Are the ratios 3:5 and 6:10 proportional?

Back

YES

Front

If 4/x = 16/20, what is x?

Back

x = 5