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Finding the Third Proportional to 3,687 and 5,182

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Solution

The third proportional to 3,687 and 5,182 is: 7,283.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687 : 5,182 = 5,182 : x
  2. Step 2: Convert to fraction form
    3,687/5,182 = 5,182/x
  3. Step 3: Cross multiply
    3,687x = 5,182 × 5,182
  4. Step 4: Simplify right side
    3,687x = 26,853,124
  5. Step 5: Solve for x
    x = 26,853,124/3,687
  6. Step 6: Final answer
    x = 7,283.19

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.