Home / 5,438.12-8,163.68-3,247.88

Finding the Fourth Proportional to 5,438.12, 8,163.68 and 3,247.88

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Solution

The fourth proportional to 5,438.12, 8,163.68 and 3,247.88 is: 4,875.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.12 : 8,163.68 = 3,247.88 : x
  2. Step 2: Convert to fraction form
    5,438.12/8,163.68 = 3,247.88/x
  3. Step 3: Cross multiply
    5,438.12x = 8,163.68 × 3,247.88
  4. Step 4: Simplify right side
    5,438.12x = 26,514,653.00
  5. Step 5: Solve for x
    x = 26,514,653.00/5,438.12
  6. Step 6: Final answer
    x = 4,875.70

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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.