Proportion Word Problems

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you set up a proportion to solve a word problem?

Back

Identify the two ratios involved in the problem and set them equal to each other.

Front

If 120 snowballs can be made from 8 pounds of snow, how many pounds of snow are needed to make 15 snowballs?

Back

1 pound

Front

A snowmobile travels 240 miles in 4 hours. How far will it travel in 7 hours at the same speed?

Back

420 miles

Front

When making a snowman, if Marcus uses 1 carrot for every 3 lumps of coal, how many lumps of coal does he use if he uses 12 carrots?

Back

36 lumps of coal

Front

If Santa gives 15 gifts to 8 children, how many gifts will he give to 24 children?

Back

45 gifts

Front

What is the formula for finding a missing value in a proportion?

Back

Cross-multiply the known values and solve for the unknown.

Front

In a recipe, if the ratio of flour to sugar is 2.5:2, what is the equivalent ratio if you use 1 cup of sugar?

Back

1.25 cups of flour.

Front

What does it mean to maintain the same proportion?

Back

It means to keep the same ratio between quantities when scaling up or down.

Front

How can you check if two ratios are equivalent?

Back

Cross-multiply and see if the products are equal.