Home / 4,086.32-6,121.32-3,158.64

Finding the Fourth Proportional to 4,086.32, 6,121.32 and 3,158.64

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Solution

The fourth proportional to 4,086.32, 6,121.32 and 3,158.64 is: 4,731.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.32 : 6,121.32 = 3,158.64 : x
  2. Step 2: Convert to fraction form
    4,086.32/6,121.32 = 3,158.64/x
  3. Step 3: Cross multiply
    4,086.32x = 6,121.32 × 3,158.64
  4. Step 4: Simplify right side
    4,086.32x = 19,335,046.20
  5. Step 5: Solve for x
    x = 19,335,046.20/4,086.32
  6. Step 6: Final answer
    x = 4,731.65

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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.