Home / 3,791.17-5,231.73-2,112.52

Finding the Fourth Proportional to 3,791.17, 5,231.73 and 2,112.52

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Solution

The fourth proportional to 3,791.17, 5,231.73 and 2,112.52 is: 2,915.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.17 : 5,231.73 = 2,112.52 : x
  2. Step 2: Convert to fraction form
    3,791.17/5,231.73 = 2,112.52/x
  3. Step 3: Cross multiply
    3,791.17x = 5,231.73 × 2,112.52
  4. Step 4: Simplify right side
    3,791.17x = 11,052,134.26
  5. Step 5: Solve for x
    x = 11,052,134.26/3,791.17
  6. Step 6: Final answer
    x = 2,915.23

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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.