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Finding the Fourth Proportional to 2,920.60, 4,375.06 and 2,227.96

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Solution

The fourth proportional to 2,920.60, 4,375.06 and 2,227.96 is: 3,337.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.60 : 4,375.06 = 2,227.96 : x
  2. Step 2: Convert to fraction form
    2,920.60/4,375.06 = 2,227.96/x
  3. Step 3: Cross multiply
    2,920.60x = 4,375.06 × 2,227.96
  4. Step 4: Simplify right side
    2,920.60x = 9,747,458.68
  5. Step 5: Solve for x
    x = 9,747,458.68/2,920.60
  6. Step 6: Final answer
    x = 3,337.48

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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.