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Finding the Fourth Proportional to 3,951.81, 5,453.43 and 2,273.19

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Solution

The fourth proportional to 3,951.81, 5,453.43 and 2,273.19 is: 3,136.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.81 : 5,453.43 = 2,273.19 : x
  2. Step 2: Convert to fraction form
    3,951.81/5,453.43 = 2,273.19/x
  3. Step 3: Cross multiply
    3,951.81x = 5,453.43 × 2,273.19
  4. Step 4: Simplify right side
    3,951.81x = 12,396,682.54
  5. Step 5: Solve for x
    x = 12,396,682.54/3,951.81
  6. Step 6: Final answer
    x = 3,136.96

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Double scale
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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.