Home / 3,472.28-4,791.87-1,979.95

Finding the Fourth Proportional to 3,472.28, 4,791.87 and 1,979.95

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Solution

The fourth proportional to 3,472.28, 4,791.87 and 1,979.95 is: 2,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.28 : 4,791.87 = 1,979.95 : x
  2. Step 2: Convert to fraction form
    3,472.28/4,791.87 = 1,979.95/x
  3. Step 3: Cross multiply
    3,472.28x = 4,791.87 × 1,979.95
  4. Step 4: Simplify right side
    3,472.28x = 9,487,663.01
  5. Step 5: Solve for x
    x = 9,487,663.01/3,472.28
  6. Step 6: Final answer
    x = 2,732.40

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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.