Home / 3,951.54-5,453.12-2,183.15

Finding the Fourth Proportional to 3,951.54, 5,453.12 and 2,183.15

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Solution

The fourth proportional to 3,951.54, 5,453.12 and 2,183.15 is: 3,012.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.54 : 5,453.12 = 2,183.15 : x
  2. Step 2: Convert to fraction form
    3,951.54/5,453.12 = 2,183.15/x
  3. Step 3: Cross multiply
    3,951.54x = 5,453.12 × 2,183.15
  4. Step 4: Simplify right side
    3,951.54x = 11,904,998.02
  5. Step 5: Solve for x
    x = 11,904,998.02/3,951.54
  6. Step 6: Final answer
    x = 3,012.75

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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.