Home / 4,121.79-6,183.81-1,489.61

Finding the Fourth Proportional to 4,121.79, 6,183.81 and 1,489.61

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Solution

The fourth proportional to 4,121.79, 6,183.81 and 1,489.61 is: 2,234.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.79 : 6,183.81 = 1,489.61 : x
  2. Step 2: Convert to fraction form
    4,121.79/6,183.81 = 1,489.61/x
  3. Step 3: Cross multiply
    4,121.79x = 6,183.81 × 1,489.61
  4. Step 4: Simplify right side
    4,121.79x = 9,211,434.30
  5. Step 5: Solve for x
    x = 9,211,434.30/4,121.79
  6. Step 6: Final answer
    x = 2,234.81

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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.