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Finding the Third Proportional to 4,489 and 8,249

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Solution

The third proportional to 4,489 and 8,249 is: 15,158.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,489 : 8,249 = 8,249 : x
  2. Step 2: Convert to fraction form
    4,489/8,249 = 8,249/x
  3. Step 3: Cross multiply
    4,489x = 8,249 × 8,249
  4. Step 4: Simplify right side
    4,489x = 68,046,001
  5. Step 5: Solve for x
    x = 68,046,001/4,489
  6. Step 6: Final answer
    x = 15,158.39

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Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.