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Finding the Third Proportional to 3,900 and 7,441

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Solution

The third proportional to 3,900 and 7,441 is: 14,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900 : 7,441 = 7,441 : x
  2. Step 2: Convert to fraction form
    3,900/7,441 = 7,441/x
  3. Step 3: Cross multiply
    3,900x = 7,441 × 7,441
  4. Step 4: Simplify right side
    3,900x = 55,368,481
  5. Step 5: Solve for x
    x = 55,368,481/3,900
  6. Step 6: Final answer
    x = 14,197.05

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.