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Finding the Third Proportional to 3,137 and 6,919

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Solution

The third proportional to 3,137 and 6,919 is: 15,260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137 : 6,919 = 6,919 : x
  2. Step 2: Convert to fraction form
    3,137/6,919 = 6,919/x
  3. Step 3: Cross multiply
    3,137x = 6,919 × 6,919
  4. Step 4: Simplify right side
    3,137x = 47,872,561
  5. Step 5: Solve for x
    x = 47,872,561/3,137
  6. Step 6: Final answer
    x = 15,260.62

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.