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Finding the Fourth Proportional to 3,452.79, 5,179.79 and 1,262.96

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Solution

The fourth proportional to 3,452.79, 5,179.79 and 1,262.96 is: 1,894.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,452.79 : 5,179.79 = 1,262.96 : x
  2. Step 2: Convert to fraction form
    3,452.79/5,179.79 = 1,262.96/x
  3. Step 3: Cross multiply
    3,452.79x = 5,179.79 × 1,262.96
  4. Step 4: Simplify right side
    3,452.79x = 6,541,867.58
  5. Step 5: Solve for x
    x = 6,541,867.58/3,452.79
  6. Step 6: Final answer
    x = 1,894.66

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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.