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Finding the Third Proportional to 3,280 and 7,654

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Solution

The third proportional to 3,280 and 7,654 is: 17,860.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280 : 7,654 = 7,654 : x
  2. Step 2: Convert to fraction form
    3,280/7,654 = 7,654/x
  3. Step 3: Cross multiply
    3,280x = 7,654 × 7,654
  4. Step 4: Simplify right side
    3,280x = 58,583,716
  5. Step 5: Solve for x
    x = 58,583,716/3,280
  6. Step 6: Final answer
    x = 17,860.89

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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.