Home / 3,791.20-5,659.72-3,207.84

Finding the Fourth Proportional to 3,791.20, 5,659.72 and 3,207.84

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Solution

The fourth proportional to 3,791.20, 5,659.72 and 3,207.84 is: 4,788.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.20 : 5,659.72 = 3,207.84 : x
  2. Step 2: Convert to fraction form
    3,791.20/5,659.72 = 3,207.84/x
  3. Step 3: Cross multiply
    3,791.20x = 5,659.72 × 3,207.84
  4. Step 4: Simplify right side
    3,791.20x = 18,155,476.20
  5. Step 5: Solve for x
    x = 18,155,476.20/3,791.20
  6. Step 6: Final answer
    x = 4,788.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.