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Finding the Fourth Proportional to 3,976.32, 5,963.04 and 1,781.04

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Solution

The fourth proportional to 3,976.32, 5,963.04 and 1,781.04 is: 2,670.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.32 : 5,963.04 = 1,781.04 : x
  2. Step 2: Convert to fraction form
    3,976.32/5,963.04 = 1,781.04/x
  3. Step 3: Cross multiply
    3,976.32x = 5,963.04 × 1,781.04
  4. Step 4: Simplify right side
    3,976.32x = 10,620,412.76
  5. Step 5: Solve for x
    x = 10,620,412.76/3,976.32
  6. Step 6: Final answer
    x = 2,670.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.