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Finding the Fourth Proportional to 5,411.52, 8,120.52 and 1,949.04

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Solution

The fourth proportional to 5,411.52, 8,120.52 and 1,949.04 is: 2,924.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.52 : 8,120.52 = 1,949.04 : x
  2. Step 2: Convert to fraction form
    5,411.52/8,120.52 = 1,949.04/x
  3. Step 3: Cross multiply
    5,411.52x = 8,120.52 × 1,949.04
  4. Step 4: Simplify right side
    5,411.52x = 15,827,218.30
  5. Step 5: Solve for x
    x = 15,827,218.30/5,411.52
  6. Step 6: Final answer
    x = 2,924.73

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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.