GET A PAPER FOR NOTES!!
- Proportion-An equation stating that two ratios are equal.
- Cross Products-The two products found by multiplying the numerator of each ratio by the denominator of the other ratio.
DON'T ASK!!!! YOU BETTER BE WRITING THIS DOWN!!!
Step 1: Set up your ratios next to each other in fraction form.
Step 2: Cross multiply your numerators and denominator.
Step 3: Solve the one step equation.
1) 4/x=2/3 2) 7/12=x/5
3) x/8=1/2 4) 4/5=2/x