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Finding the Fourth Proportional to 3,943.81, 5,441.87 and 2,265.29

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Solution

The fourth proportional to 3,943.81, 5,441.87 and 2,265.29 is: 3,125.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.81 : 5,441.87 = 2,265.29 : x
  2. Step 2: Convert to fraction form
    3,943.81/5,441.87 = 2,265.29/x
  3. Step 3: Cross multiply
    3,943.81x = 5,441.87 × 2,265.29
  4. Step 4: Simplify right side
    3,943.81x = 12,327,375.16
  5. Step 5: Solve for x
    x = 12,327,375.16/3,943.81
  6. Step 6: Final answer
    x = 3,125.75

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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.