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Finding the Fourth Proportional to 3,550.78, 5,326.12 and 1,601.61

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Solution

The fourth proportional to 3,550.78, 5,326.12 and 1,601.61 is: 2,402.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,550.78 : 5,326.12 = 1,601.61 : x
  2. Step 2: Convert to fraction form
    3,550.78/5,326.12 = 1,601.61/x
  3. Step 3: Cross multiply
    3,550.78x = 5,326.12 × 1,601.61
  4. Step 4: Simplify right side
    3,550.78x = 8,530,367.05
  5. Step 5: Solve for x
    x = 8,530,367.05/3,550.78
  6. Step 6: Final answer
    x = 2,402.39

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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.