Home / 3,481.38-5,216.31-2,557.31

Finding the Fourth Proportional to 3,481.38, 5,216.31 and 2,557.31

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Solution

The fourth proportional to 3,481.38, 5,216.31 and 2,557.31 is: 3,831.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.38 : 5,216.31 = 2,557.31 : x
  2. Step 2: Convert to fraction form
    3,481.38/5,216.31 = 2,557.31/x
  3. Step 3: Cross multiply
    3,481.38x = 5,216.31 × 2,557.31
  4. Step 4: Simplify right side
    3,481.38x = 13,339,695.64
  5. Step 5: Solve for x
    x = 13,339,695.64/3,481.38
  6. Step 6: Final answer
    x = 3,831.73

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1.5x scale

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.