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Finding the Third Proportional to 3,188 and 3,908

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Solution

The third proportional to 3,188 and 3,908 is: 4,790.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188 : 3,908 = 3,908 : x
  2. Step 2: Convert to fraction form
    3,188/3,908 = 3,908/x
  3. Step 3: Cross multiply
    3,188x = 3,908 × 3,908
  4. Step 4: Simplify right side
    3,188x = 15,272,464
  5. Step 5: Solve for x
    x = 15,272,464/3,188
  6. Step 6: Final answer
    x = 4,790.61

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Why These Related Problems?

These problems maintain the same ratio (1.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.