Home / 3,951.43-5,453.09-2,183.15

Finding the Fourth Proportional to 3,951.43, 5,453.09 and 2,183.15

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Solution

The fourth proportional to 3,951.43, 5,453.09 and 2,183.15 is: 3,012.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.43 : 5,453.09 = 2,183.15 : x
  2. Step 2: Convert to fraction form
    3,951.43/5,453.09 = 2,183.15/x
  3. Step 3: Cross multiply
    3,951.43x = 5,453.09 × 2,183.15
  4. Step 4: Simplify right side
    3,951.43x = 11,904,921.61
  5. Step 5: Solve for x
    x = 11,904,921.61/3,951.43
  6. Step 6: Final answer
    x = 3,012.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.