Home / 3,422.52-4,721.92-2,791.95

Finding the Fourth Proportional to 3,422.52, 4,721.92 and 2,791.95

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Solution

The fourth proportional to 3,422.52, 4,721.92 and 2,791.95 is: 3,851.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.52 : 4,721.92 = 2,791.95 : x
  2. Step 2: Convert to fraction form
    3,422.52/4,721.92 = 2,791.95/x
  3. Step 3: Cross multiply
    3,422.52x = 4,721.92 × 2,791.95
  4. Step 4: Simplify right side
    3,422.52x = 13,183,339.86
  5. Step 5: Solve for x
    x = 13,183,339.86/3,422.52
  6. Step 6: Final answer
    x = 3,851.94

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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.