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Finding the Fourth Proportional to 3,951.72, 5,453.22 and 2,183.29

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Solution

The fourth proportional to 3,951.72, 5,453.22 and 2,183.29 is: 3,012.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.72 : 5,453.22 = 2,183.29 : x
  2. Step 2: Convert to fraction form
    3,951.72/5,453.22 = 2,183.29/x
  3. Step 3: Cross multiply
    3,951.72x = 5,453.22 × 2,183.29
  4. Step 4: Simplify right side
    3,951.72x = 11,905,955.25
  5. Step 5: Solve for x
    x = 11,905,955.25/3,951.72
  6. Step 6: Final answer
    x = 3,012.85

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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.