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Finding the Fourth Proportional to 3,201.01, 4,801.42 and 979.82

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Solution

The fourth proportional to 3,201.01, 4,801.42 and 979.82 is: 1,469.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.01 : 4,801.42 = 979.82 : x
  2. Step 2: Convert to fraction form
    3,201.01/4,801.42 = 979.82/x
  3. Step 3: Cross multiply
    3,201.01x = 4,801.42 × 979.82
  4. Step 4: Simplify right side
    3,201.01x = 4,704,527.34
  5. Step 5: Solve for x
    x = 4,704,527.34/3,201.01
  6. Step 6: Final answer
    x = 1,469.70

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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.