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Finding the Third Proportional to 1,248.54 and 2,540.11

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Solution

The third proportional to 1,248.54 and 2,540.11 is: 5,167.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248.54 : 2,540.11 = 2,540.11 : x
  2. Step 2: Convert to fraction form
    1,248.54/2,540.11 = 2,540.11/x
  3. Step 3: Cross multiply
    1,248.54x = 2,540.11 × 2,540.11
  4. Step 4: Simplify right side
    1,248.54x = 6,452,155.64
  5. Step 5: Solve for x
    x = 6,452,155.64/1,248.54
  6. Step 6: Final answer
    x = 5,167.76

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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.