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Finding the Fourth Proportional to 3,951.81, 5,453.53 and 2,183.38

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Solution

The fourth proportional to 3,951.81, 5,453.53 and 2,183.38 is: 3,013.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.81 : 5,453.53 = 2,183.38 : x
  2. Step 2: Convert to fraction form
    3,951.81/5,453.53 = 2,183.38/x
  3. Step 3: Cross multiply
    3,951.81x = 5,453.53 × 2,183.38
  4. Step 4: Simplify right side
    3,951.81x = 11,907,109.24
  5. Step 5: Solve for x
    x = 11,907,109.24/3,951.81
  6. Step 6: Final answer
    x = 3,013.08

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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.