Home / 2,791.30-4,184.79-1,251.22

Finding the Fourth Proportional to 2,791.30, 4,184.79 and 1,251.22

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Solution

The fourth proportional to 2,791.30, 4,184.79 and 1,251.22 is: 1,875.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.30 : 4,184.79 = 1,251.22 : x
  2. Step 2: Convert to fraction form
    2,791.30/4,184.79 = 1,251.22/x
  3. Step 3: Cross multiply
    2,791.30x = 4,184.79 × 1,251.22
  4. Step 4: Simplify right side
    2,791.30x = 5,236,092.94
  5. Step 5: Solve for x
    x = 5,236,092.94/2,791.30
  6. Step 6: Final answer
    x = 1,875.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.