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Finding the Third Proportional to 2,872 and 6,685

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Solution

The third proportional to 2,872 and 6,685 is: 15,560.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872 : 6,685 = 6,685 : x
  2. Step 2: Convert to fraction form
    2,872/6,685 = 6,685/x
  3. Step 3: Cross multiply
    2,872x = 6,685 × 6,685
  4. Step 4: Simplify right side
    2,872x = 44,689,225
  5. Step 5: Solve for x
    x = 44,689,225/2,872
  6. Step 6: Final answer
    x = 15,560.32

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.