Home / 3,247.56-4,871.73-1,515.78

Finding the Fourth Proportional to 3,247.56, 4,871.73 and 1,515.78

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Solution

The fourth proportional to 3,247.56, 4,871.73 and 1,515.78 is: 2,273.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.56 : 4,871.73 = 1,515.78 : x
  2. Step 2: Convert to fraction form
    3,247.56/4,871.73 = 1,515.78/x
  3. Step 3: Cross multiply
    3,247.56x = 4,871.73 × 1,515.78
  4. Step 4: Simplify right side
    3,247.56x = 7,384,470.90
  5. Step 5: Solve for x
    x = 7,384,470.90/3,247.56
  6. Step 6: Final answer
    x = 2,273.85

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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.