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Finding the Fourth Proportional to 5,865.72, 8,799.28 and 2,578.42

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Solution

The fourth proportional to 5,865.72, 8,799.28 and 2,578.42 is: 3,867.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,865.72 : 8,799.28 = 2,578.42 : x
  2. Step 2: Convert to fraction form
    5,865.72/8,799.28 = 2,578.42/x
  3. Step 3: Cross multiply
    5,865.72x = 8,799.28 × 2,578.42
  4. Step 4: Simplify right side
    5,865.72x = 22,688,239.54
  5. Step 5: Solve for x
    x = 22,688,239.54/5,865.72
  6. Step 6: Final answer
    x = 3,867.94

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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.