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Finding the Third Proportional to 1,125.14 and 2,278.76

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Solution

The third proportional to 1,125.14 and 2,278.76 is: 4,615.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125.14 : 2,278.76 = 2,278.76 : x
  2. Step 2: Convert to fraction form
    1,125.14/2,278.76 = 2,278.76/x
  3. Step 3: Cross multiply
    1,125.14x = 2,278.76 × 2,278.76
  4. Step 4: Simplify right side
    1,125.14x = 5,192,737.17
  5. Step 5: Solve for x
    x = 5,192,737.17/1,125.14
  6. Step 6: Final answer
    x = 4,615.19

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.