Home / 3,188.94-4,400.92-1,791.78

Finding the Fourth Proportional to 3,188.94, 4,400.92 and 1,791.78

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Solution

The fourth proportional to 3,188.94, 4,400.92 and 1,791.78 is: 2,472.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.94 : 4,400.92 = 1,791.78 : x
  2. Step 2: Convert to fraction form
    3,188.94/4,400.92 = 1,791.78/x
  3. Step 3: Cross multiply
    3,188.94x = 4,400.92 × 1,791.78
  4. Step 4: Simplify right side
    3,188.94x = 7,885,480.44
  5. Step 5: Solve for x
    x = 7,885,480.44/3,188.94
  6. Step 6: Final answer
    x = 2,472.76

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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.