Home / 3,191.28-4,782.76-1,629.97

Finding the Fourth Proportional to 3,191.28, 4,782.76 and 1,629.97

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Solution

The fourth proportional to 3,191.28, 4,782.76 and 1,629.97 is: 2,442.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.28 : 4,782.76 = 1,629.97 : x
  2. Step 2: Convert to fraction form
    3,191.28/4,782.76 = 1,629.97/x
  3. Step 3: Cross multiply
    3,191.28x = 4,782.76 × 1,629.97
  4. Step 4: Simplify right side
    3,191.28x = 7,795,723.25
  5. Step 5: Solve for x
    x = 7,795,723.25/3,191.28
  6. Step 6: Final answer
    x = 2,442.82

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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.