Proportions

Front

What is a proportion?

Back

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

Front

Determine if the following ratios form a proportion: 2:4 and 1:2.

Back

Proportion

Front

Back

x = 5

Front

Determine if the following ratios form a proportion: 3:6 and 1:3.

Back

Not a Proportion

Front

If there are 6 red cars sold to every 3 blue cars, is it the same proportion as 2 red cars to every 1 blue car?

Back

Yes

Front

What is the cross-multiplication method used for?

Back

It is used to determine if two ratios form a proportion by multiplying the means and extremes.

Front

Back

They are proportional.

Front

What is the relationship between equivalent fractions and proportions?

Back

Equivalent fractions represent the same value and can be used to form proportions.

Front

Back

x = 6

Front

What does it mean if two ratios are not a proportion?

Back

It means they do not represent the same value or cannot be simplified to the same fraction.