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Finding the Third Proportional to 2,489 and 5,134

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Solution

The third proportional to 2,489 and 5,134 is: 10,589.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489 : 5,134 = 5,134 : x
  2. Step 2: Convert to fraction form
    2,489/5,134 = 5,134/x
  3. Step 3: Cross multiply
    2,489x = 5,134 × 5,134
  4. Step 4: Simplify right side
    2,489x = 26,357,956
  5. Step 5: Solve for x
    x = 26,357,956/2,489
  6. Step 6: Final answer
    x = 10,589.78

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.