Finding the Third Proportional to 967.50 and 1,287
Calculator
Solution
The third proportional to 967.50 and 1,287 is: 1,712.01
Step by Step Solution
- Step 1: Write the proportion equation
967.50 : 1,287 = 1,287 : x - Step 2: Convert to fraction form
967.50/1,287 = 1,287/x - Step 3: Cross multiply
967.50x = 1,287 × 1,287 - Step 4: Simplify right side
967.50x = 1,656,369 - Step 5: Solve for x
x = 1,656,369/967.50 - Step 6: Final answer
x = 1,712.01
Related Problems
Find third proportional to 483.75 and 643.50
Half scale
Find third proportional to 1,935 and 2,574
Double scale
Find third proportional to 970 and 1,290
Similar ratio
Find third proportional to 1,451.25 and 1,930.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.