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Finding the Fourth Proportional to 3,951.99, 5,453.55 and 2,183.55

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Solution

The fourth proportional to 3,951.99, 5,453.55 and 2,183.55 is: 3,013.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.99 : 5,453.55 = 2,183.55 : x
  2. Step 2: Convert to fraction form
    3,951.99/5,453.55 = 2,183.55/x
  3. Step 3: Cross multiply
    3,951.99x = 5,453.55 × 2,183.55
  4. Step 4: Simplify right side
    3,951.99x = 11,908,099.10
  5. Step 5: Solve for x
    x = 11,908,099.10/3,951.99
  6. Step 6: Final answer
    x = 3,013.19

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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.