Home / 2,747.28-3,791.31-1,629.09

Finding the Fourth Proportional to 2,747.28, 3,791.31 and 1,629.09

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Solution

The fourth proportional to 2,747.28, 3,791.31 and 1,629.09 is: 2,248.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.28 : 3,791.31 = 1,629.09 : x
  2. Step 2: Convert to fraction form
    2,747.28/3,791.31 = 1,629.09/x
  3. Step 3: Cross multiply
    2,747.28x = 3,791.31 × 1,629.09
  4. Step 4: Simplify right side
    2,747.28x = 6,176,385.21
  5. Step 5: Solve for x
    x = 6,176,385.21/2,747.28
  6. Step 6: Final answer
    x = 2,248.18

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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.