Home / 7,440.62-11,161.06-3,489.71

Finding the Fourth Proportional to 7,440.62, 11,161.06 and 3,489.71

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Solution

The fourth proportional to 7,440.62, 11,161.06 and 3,489.71 is: 5,234.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,440.62 : 11,161.06 = 3,489.71 : x
  2. Step 2: Convert to fraction form
    7,440.62/11,161.06 = 3,489.71/x
  3. Step 3: Cross multiply
    7,440.62x = 11,161.06 × 3,489.71
  4. Step 4: Simplify right side
    7,440.62x = 38,948,862.69
  5. Step 5: Solve for x
    x = 38,948,862.69/7,440.62
  6. Step 6: Final answer
    x = 5,234.63

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1.5x scale

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.