Home / 3,789.82-5,223.99-2,791.90

Finding the Fourth Proportional to 3,789.82, 5,223.99 and 2,791.90

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Solution

The fourth proportional to 3,789.82, 5,223.99 and 2,791.90 is: 3,848.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.82 : 5,223.99 = 2,791.90 : x
  2. Step 2: Convert to fraction form
    3,789.82/5,223.99 = 2,791.90/x
  3. Step 3: Cross multiply
    3,789.82x = 5,223.99 × 2,791.90
  4. Step 4: Simplify right side
    3,789.82x = 14,584,857.68
  5. Step 5: Solve for x
    x = 14,584,857.68/3,789.82
  6. Step 6: Final answer
    x = 3,848.43

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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.