Home / 3,163.82-4,743.75-1,213.70

Finding the Fourth Proportional to 3,163.82, 4,743.75 and 1,213.70

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Solution

The fourth proportional to 3,163.82, 4,743.75 and 1,213.70 is: 1,819.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.82 : 4,743.75 = 1,213.70 : x
  2. Step 2: Convert to fraction form
    3,163.82/4,743.75 = 1,213.70/x
  3. Step 3: Cross multiply
    3,163.82x = 4,743.75 × 1,213.70
  4. Step 4: Simplify right side
    3,163.82x = 5,757,489.38
  5. Step 5: Solve for x
    x = 5,757,489.38/3,163.82
  6. Step 6: Final answer
    x = 1,819.79

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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.