Finding the Third Proportional to 615 and 1,350
Calculator
Solution
The third proportional to 615 and 1,350 is: 2,963.41
Step by Step Solution
- Step 1: Write the proportion equation
615 : 1,350 = 1,350 : x - Step 2: Convert to fraction form
615/1,350 = 1,350/x - Step 3: Cross multiply
615x = 1,350 × 1,350 - Step 4: Simplify right side
615x = 1,822,500 - Step 5: Solve for x
x = 1,822,500/615 - Step 6: Final answer
x = 2,963.41
Related Problems
Find third proportional to 307.50 and 675
Half scale
Find third proportional to 1,230 and 2,700
Double scale
Find third proportional to 617 and 1,354
Similar ratio
Find third proportional to 922.50 and 2,025
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.