Home / 7,425.50-11,138.26-2,231.38

Finding the Fourth Proportional to 7,425.50, 11,138.26 and 2,231.38

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Solution

The fourth proportional to 7,425.50, 11,138.26 and 2,231.38 is: 3,347.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,425.50 : 11,138.26 = 2,231.38 : x
  2. Step 2: Convert to fraction form
    7,425.50/11,138.26 = 2,231.38/x
  3. Step 3: Cross multiply
    7,425.50x = 11,138.26 × 2,231.38
  4. Step 4: Simplify right side
    7,425.50x = 24,853,690.60
  5. Step 5: Solve for x
    x = 24,853,690.60/7,425.50
  6. Step 6: Final answer
    x = 3,347.07

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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.