Home / 877.50-1,338.75

Finding the Third Proportional to 877.50 and 1,338.75

Calculator

Solution

The third proportional to 877.50 and 1,338.75 is: 2,042.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    877.50 : 1,338.75 = 1,338.75 : x
  2. Step 2: Convert to fraction form
    877.50/1,338.75 = 1,338.75/x
  3. Step 3: Cross multiply
    877.50x = 1,338.75 × 1,338.75
  4. Step 4: Simplify right side
    877.50x = 1,792,251.56
  5. Step 5: Solve for x
    x = 1,792,251.56/877.50
  6. Step 6: Final answer
    x = 2,042.45

Related Problems

Find third proportional to 438.75 and 669.38
Half scale
Find third proportional to 1,755 and 2,677.50
Double scale
Find third proportional to 880 and 1,342
Similar ratio
Find third proportional to 1,316.25 and 2,008.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.