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Finding the Fourth Proportional to 3,951.86, 5,453.54 and 2,183.54

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Solution

The fourth proportional to 3,951.86, 5,453.54 and 2,183.54 is: 3,013.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.86 : 5,453.54 = 2,183.54 : x
  2. Step 2: Convert to fraction form
    3,951.86/5,453.54 = 2,183.54/x
  3. Step 3: Cross multiply
    3,951.86x = 5,453.54 × 2,183.54
  4. Step 4: Simplify right side
    3,951.86x = 11,908,022.73
  5. Step 5: Solve for x
    x = 11,908,022.73/3,951.86
  6. Step 6: Final answer
    x = 3,013.27

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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.