Home / 3,489.27-4,813.39-2,229

Finding the Fourth Proportional to 3,489.27, 4,813.39 and 2,229

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Solution

The fourth proportional to 3,489.27, 4,813.39 and 2,229 is: 3,074.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.27 : 4,813.39 = 2,229 : x
  2. Step 2: Convert to fraction form
    3,489.27/4,813.39 = 2,229/x
  3. Step 3: Cross multiply
    3,489.27x = 4,813.39 × 2,229
  4. Step 4: Simplify right side
    3,489.27x = 10,729,046.31
  5. Step 5: Solve for x
    x = 10,729,046.31/3,489.27
  6. Step 6: Final answer
    x = 3,074.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.