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Finding the Fourth Proportional to 3,199.92, 4,801.98 and 1,147.92

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Solution

The fourth proportional to 3,199.92, 4,801.98 and 1,147.92 is: 1,722.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,199.92 : 4,801.98 = 1,147.92 : x
  2. Step 2: Convert to fraction form
    3,199.92/4,801.98 = 1,147.92/x
  3. Step 3: Cross multiply
    3,199.92x = 4,801.98 × 1,147.92
  4. Step 4: Simplify right side
    3,199.92x = 5,512,288.88
  5. Step 5: Solve for x
    x = 5,512,288.88/3,199.92
  6. Step 6: Final answer
    x = 1,722.63

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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.