Home / 3,791.88-5,230.96-2,951.12

Finding the Fourth Proportional to 3,791.88, 5,230.96 and 2,951.12

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Solution

The fourth proportional to 3,791.88, 5,230.96 and 2,951.12 is: 4,071.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.88 : 5,230.96 = 2,951.12 : x
  2. Step 2: Convert to fraction form
    3,791.88/5,230.96 = 2,951.12/x
  3. Step 3: Cross multiply
    3,791.88x = 5,230.96 × 2,951.12
  4. Step 4: Simplify right side
    3,791.88x = 15,437,190.68
  5. Step 5: Solve for x
    x = 15,437,190.68/3,791.88
  6. Step 6: Final answer
    x = 4,071.12

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1.5x scale

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.