Home / 7,221.72-10,831.92-2,294.61

Finding the Fourth Proportional to 7,221.72, 10,831.92 and 2,294.61

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Solution

The fourth proportional to 7,221.72, 10,831.92 and 2,294.61 is: 3,441.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.72 : 10,831.92 = 2,294.61 : x
  2. Step 2: Convert to fraction form
    7,221.72/10,831.92 = 2,294.61/x
  3. Step 3: Cross multiply
    7,221.72x = 10,831.92 × 2,294.61
  4. Step 4: Simplify right side
    7,221.72x = 24,855,031.95
  5. Step 5: Solve for x
    x = 24,855,031.95/7,221.72
  6. Step 6: Final answer
    x = 3,441.71

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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.