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Finding the Fourth Proportional to 3,959.58, 5,941.42 and 2,872.92

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Solution

The fourth proportional to 3,959.58, 5,941.42 and 2,872.92 is: 4,310.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.58 : 5,941.42 = 2,872.92 : x
  2. Step 2: Convert to fraction form
    3,959.58/5,941.42 = 2,872.92/x
  3. Step 3: Cross multiply
    3,959.58x = 5,941.42 × 2,872.92
  4. Step 4: Simplify right side
    3,959.58x = 17,069,224.35
  5. Step 5: Solve for x
    x = 17,069,224.35/3,959.58
  6. Step 6: Final answer
    x = 4,310.87

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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.