Home / 3,481.38-5,219.39-1,139.96

Finding the Fourth Proportional to 3,481.38, 5,219.39 and 1,139.96

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Solution

The fourth proportional to 3,481.38, 5,219.39 and 1,139.96 is: 1,709.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.38 : 5,219.39 = 1,139.96 : x
  2. Step 2: Convert to fraction form
    3,481.38/5,219.39 = 1,139.96/x
  3. Step 3: Cross multiply
    3,481.38x = 5,219.39 × 1,139.96
  4. Step 4: Simplify right side
    3,481.38x = 5,949,911.72
  5. Step 5: Solve for x
    x = 5,949,911.72/3,481.38
  6. Step 6: Final answer
    x = 1,709.07

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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.