Home / 3,188.56-4,399.92-1,791.04

Finding the Fourth Proportional to 3,188.56, 4,399.92 and 1,791.04

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Solution

The fourth proportional to 3,188.56, 4,399.92 and 1,791.04 is: 2,471.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.56 : 4,399.92 = 1,791.04 : x
  2. Step 2: Convert to fraction form
    3,188.56/4,399.92 = 1,791.04/x
  3. Step 3: Cross multiply
    3,188.56x = 4,399.92 × 1,791.04
  4. Step 4: Simplify right side
    3,188.56x = 7,880,432.72
  5. Step 5: Solve for x
    x = 7,880,432.72/3,188.56
  6. Step 6: Final answer
    x = 2,471.47

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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.