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Finding the Third Proportional to 3,086 and 3,542

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Solution

The third proportional to 3,086 and 3,542 is: 4,065.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086 : 3,542 = 3,542 : x
  2. Step 2: Convert to fraction form
    3,086/3,542 = 3,542/x
  3. Step 3: Cross multiply
    3,086x = 3,542 × 3,542
  4. Step 4: Simplify right side
    3,086x = 12,545,764
  5. Step 5: Solve for x
    x = 12,545,764/3,086
  6. Step 6: Final answer
    x = 4,065.38

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.