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Finding the Third Proportional to 1,306.13 and 2,103.47

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Solution

The third proportional to 1,306.13 and 2,103.47 is: 3,387.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306.13 : 2,103.47 = 2,103.47 : x
  2. Step 2: Convert to fraction form
    1,306.13/2,103.47 = 2,103.47/x
  3. Step 3: Cross multiply
    1,306.13x = 2,103.47 × 2,103.47
  4. Step 4: Simplify right side
    1,306.13x = 4,424,580.78
  5. Step 5: Solve for x
    x = 4,424,580.78/1,306.13
  6. Step 6: Final answer
    x = 3,387.56

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.