Home / 3,805.28-5,251.94-2,813.43

Finding the Fourth Proportional to 3,805.28, 5,251.94 and 2,813.43

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Solution

The fourth proportional to 3,805.28, 5,251.94 and 2,813.43 is: 3,883.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.28 : 5,251.94 = 2,813.43 : x
  2. Step 2: Convert to fraction form
    3,805.28/5,251.94 = 2,813.43/x
  3. Step 3: Cross multiply
    3,805.28x = 5,251.94 × 2,813.43
  4. Step 4: Simplify right side
    3,805.28x = 14,775,951.49
  5. Step 5: Solve for x
    x = 14,775,951.49/3,805.28
  6. Step 6: Final answer
    x = 3,883.02

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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.