Home / 3,860.43-5,791.14-1,394.91

Finding the Fourth Proportional to 3,860.43, 5,791.14 and 1,394.91

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Solution

The fourth proportional to 3,860.43, 5,791.14 and 1,394.91 is: 2,092.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.43 : 5,791.14 = 1,394.91 : x
  2. Step 2: Convert to fraction form
    3,860.43/5,791.14 = 1,394.91/x
  3. Step 3: Cross multiply
    3,860.43x = 5,791.14 × 1,394.91
  4. Step 4: Simplify right side
    3,860.43x = 8,078,119.10
  5. Step 5: Solve for x
    x = 8,078,119.10/3,860.43
  6. Step 6: Final answer
    x = 2,092.55

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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.