Finding the Third Proportional to 719 and 1,261
Calculator
Solution
The third proportional to 719 and 1,261 is: 2,211.57
Step by Step Solution
- Step 1: Write the proportion equation
719 : 1,261 = 1,261 : x - Step 2: Convert to fraction form
719/1,261 = 1,261/x - Step 3: Cross multiply
719x = 1,261 × 1,261 - Step 4: Simplify right side
719x = 1,590,121 - Step 5: Solve for x
x = 1,590,121/719 - Step 6: Final answer
x = 2,211.57
Related Problems
Find third proportional to 359.50 and 630.50
Half scale
Find third proportional to 1,438 and 2,522
Double scale
Find third proportional to 721 and 1,265
Similar ratio
Find third proportional to 1,078.50 and 1,891.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.