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Finding the Fourth Proportional to 2,869.60, 4,304.40 and 2,545.60

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Solution

The fourth proportional to 2,869.60, 4,304.40 and 2,545.60 is: 3,818.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.60 : 4,304.40 = 2,545.60 : x
  2. Step 2: Convert to fraction form
    2,869.60/4,304.40 = 2,545.60/x
  3. Step 3: Cross multiply
    2,869.60x = 4,304.40 × 2,545.60
  4. Step 4: Simplify right side
    2,869.60x = 10,957,280.64
  5. Step 5: Solve for x
    x = 10,957,280.64/2,869.60
  6. Step 6: Final answer
    x = 3,818.40

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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.