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Finding the Fourth Proportional to 3,452.64, 5,174.64 and 1,721.76

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Solution

The fourth proportional to 3,452.64, 5,174.64 and 1,721.76 is: 2,580.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,452.64 : 5,174.64 = 1,721.76 : x
  2. Step 2: Convert to fraction form
    3,452.64/5,174.64 = 1,721.76/x
  3. Step 3: Cross multiply
    3,452.64x = 5,174.64 × 1,721.76
  4. Step 4: Simplify right side
    3,452.64x = 8,909,488.17
  5. Step 5: Solve for x
    x = 8,909,488.17/3,452.64
  6. Step 6: Final answer
    x = 2,580.49

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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.