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Finding the Third Proportional to 877.13 and 1,153.13

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Solution

The third proportional to 877.13 and 1,153.13 is: 1,515.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    877.13 : 1,153.13 = 1,153.13 : x
  2. Step 2: Convert to fraction form
    877.13/1,153.13 = 1,153.13/x
  3. Step 3: Cross multiply
    877.13x = 1,153.13 × 1,153.13
  4. Step 4: Simplify right side
    877.13x = 1,329,697.27
  5. Step 5: Solve for x
    x = 1,329,697.27/877.13
  6. Step 6: Final answer
    x = 1,515.97

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.