Home / 2,789.26-4,178.22-2,238.46

Finding the Fourth Proportional to 2,789.26, 4,178.22 and 2,238.46

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Solution

The fourth proportional to 2,789.26, 4,178.22 and 2,238.46 is: 3,353.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.26 : 4,178.22 = 2,238.46 : x
  2. Step 2: Convert to fraction form
    2,789.26/4,178.22 = 2,238.46/x
  3. Step 3: Cross multiply
    2,789.26x = 4,178.22 × 2,238.46
  4. Step 4: Simplify right side
    2,789.26x = 9,352,778.34
  5. Step 5: Solve for x
    x = 9,352,778.34/2,789.26
  6. Step 6: Final answer
    x = 3,353.14

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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.