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Finding the Fourth Proportional to 5,257.92, 7,255.80 and 2,899.92

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Solution

The fourth proportional to 5,257.92, 7,255.80 and 2,899.92 is: 4,001.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.92 : 7,255.80 = 2,899.92 : x
  2. Step 2: Convert to fraction form
    5,257.92/7,255.80 = 2,899.92/x
  3. Step 3: Cross multiply
    5,257.92x = 7,255.80 × 2,899.92
  4. Step 4: Simplify right side
    5,257.92x = 21,041,239.54
  5. Step 5: Solve for x
    x = 21,041,239.54/5,257.92
  6. Step 6: Final answer
    x = 4,001.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.