Home / 4,139.87-5,713.05-2,251.47

Finding the Fourth Proportional to 4,139.87, 5,713.05 and 2,251.47

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Solution

The fourth proportional to 4,139.87, 5,713.05 and 2,251.47 is: 3,107.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.87 : 5,713.05 = 2,251.47 : x
  2. Step 2: Convert to fraction form
    4,139.87/5,713.05 = 2,251.47/x
  3. Step 3: Cross multiply
    4,139.87x = 5,713.05 × 2,251.47
  4. Step 4: Simplify right side
    4,139.87x = 12,862,749.43
  5. Step 5: Solve for x
    x = 12,862,749.43/4,139.87
  6. Step 6: Final answer
    x = 3,107.04

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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.