Home / 3,958.60-5,930.28-2,221.96

Finding the Fourth Proportional to 3,958.60, 5,930.28 and 2,221.96

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Solution

The fourth proportional to 3,958.60, 5,930.28 and 2,221.96 is: 3,328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.60 : 5,930.28 = 2,221.96 : x
  2. Step 2: Convert to fraction form
    3,958.60/5,930.28 = 2,221.96/x
  3. Step 3: Cross multiply
    3,958.60x = 5,930.28 × 2,221.96
  4. Step 4: Simplify right side
    3,958.60x = 13,176,844.95
  5. Step 5: Solve for x
    x = 13,176,844.95/3,958.60
  6. Step 6: Final answer
    x = 3,328.66

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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.