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Finding the Fourth Proportional to 3,860.40, 5,327.10 and 2,463

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Solution

The fourth proportional to 3,860.40, 5,327.10 and 2,463 is: 3,398.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.40 : 5,327.10 = 2,463 : x
  2. Step 2: Convert to fraction form
    3,860.40/5,327.10 = 2,463/x
  3. Step 3: Cross multiply
    3,860.40x = 5,327.10 × 2,463
  4. Step 4: Simplify right side
    3,860.40x = 13,120,647.30
  5. Step 5: Solve for x
    x = 13,120,647.30/3,860.40
  6. Step 6: Final answer
    x = 3,398.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.