Home / 2,177.88-3,266.84-1,791.96

Finding the Fourth Proportional to 2,177.88, 3,266.84 and 1,791.96

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Solution

The fourth proportional to 2,177.88, 3,266.84 and 1,791.96 is: 2,687.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.88 : 3,266.84 = 1,791.96 : x
  2. Step 2: Convert to fraction form
    2,177.88/3,266.84 = 1,791.96/x
  3. Step 3: Cross multiply
    2,177.88x = 3,266.84 × 1,791.96
  4. Step 4: Simplify right side
    2,177.88x = 5,854,046.61
  5. Step 5: Solve for x
    x = 5,854,046.61/2,177.88
  6. Step 6: Final answer
    x = 2,687.96

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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.