Home / 3,208.38-4,427.19-1,791.90

Finding the Fourth Proportional to 3,208.38, 4,427.19 and 1,791.90

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Solution

The fourth proportional to 3,208.38, 4,427.19 and 1,791.90 is: 2,472.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.38 : 4,427.19 = 1,791.90 : x
  2. Step 2: Convert to fraction form
    3,208.38/4,427.19 = 1,791.90/x
  3. Step 3: Cross multiply
    3,208.38x = 4,427.19 × 1,791.90
  4. Step 4: Simplify right side
    3,208.38x = 7,933,081.76
  5. Step 5: Solve for x
    x = 7,933,081.76/3,208.38
  6. Step 6: Final answer
    x = 2,472.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.