Home / 3,839.44-5,760.78-1,891.66

Finding the Fourth Proportional to 3,839.44, 5,760.78 and 1,891.66

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Solution

The fourth proportional to 3,839.44, 5,760.78 and 1,891.66 is: 2,838.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.44 : 5,760.78 = 1,891.66 : x
  2. Step 2: Convert to fraction form
    3,839.44/5,760.78 = 1,891.66/x
  3. Step 3: Cross multiply
    3,839.44x = 5,760.78 × 1,891.66
  4. Step 4: Simplify right side
    3,839.44x = 10,897,437.09
  5. Step 5: Solve for x
    x = 10,897,437.09/3,839.44
  6. Step 6: Final answer
    x = 2,838.29

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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.