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Finding the Fourth Proportional to 3,608.39, 5,404.07 and 2,822.90

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Solution

The fourth proportional to 3,608.39, 5,404.07 and 2,822.90 is: 4,227.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.39 : 5,404.07 = 2,822.90 : x
  2. Step 2: Convert to fraction form
    3,608.39/5,404.07 = 2,822.90/x
  3. Step 3: Cross multiply
    3,608.39x = 5,404.07 × 2,822.90
  4. Step 4: Simplify right side
    3,608.39x = 15,255,129.24
  5. Step 5: Solve for x
    x = 15,255,129.24/3,608.39
  6. Step 6: Final answer
    x = 4,227.68

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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.