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Finding the Fourth Proportional to 3,843.60, 5,760.72 and 2,545.44

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Solution

The fourth proportional to 3,843.60, 5,760.72 and 2,545.44 is: 3,815.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,843.60 : 5,760.72 = 2,545.44 : x
  2. Step 2: Convert to fraction form
    3,843.60/5,760.72 = 2,545.44/x
  3. Step 3: Cross multiply
    3,843.60x = 5,760.72 × 2,545.44
  4. Step 4: Simplify right side
    3,843.60x = 14,663,567.12
  5. Step 5: Solve for x
    x = 14,663,567.12/3,843.60
  6. Step 6: Final answer
    x = 3,815.06

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1.5x scale

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.