Home / 5,427.12-8,141.22-2,505.72

Finding the Fourth Proportional to 5,427.12, 8,141.22 and 2,505.72

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Solution

The fourth proportional to 5,427.12, 8,141.22 and 2,505.72 is: 3,758.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.12 : 8,141.22 = 2,505.72 : x
  2. Step 2: Convert to fraction form
    5,427.12/8,141.22 = 2,505.72/x
  3. Step 3: Cross multiply
    5,427.12x = 8,141.22 × 2,505.72
  4. Step 4: Simplify right side
    5,427.12x = 20,399,617.78
  5. Step 5: Solve for x
    x = 20,399,617.78/5,427.12
  6. Step 6: Final answer
    x = 3,758.83

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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.