Home / 3,423.12-5,134.80-1,231.44

Finding the Fourth Proportional to 3,423.12, 5,134.80 and 1,231.44

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Solution

The fourth proportional to 3,423.12, 5,134.80 and 1,231.44 is: 1,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.12 : 5,134.80 = 1,231.44 : x
  2. Step 2: Convert to fraction form
    3,423.12/5,134.80 = 1,231.44/x
  3. Step 3: Cross multiply
    3,423.12x = 5,134.80 × 1,231.44
  4. Step 4: Simplify right side
    3,423.12x = 6,323,198.11
  5. Step 5: Solve for x
    x = 6,323,198.11/3,423.12
  6. Step 6: Final answer
    x = 1,847.20

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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.