Home / 5,426.20-8,139.27-2,305.73

Finding the Fourth Proportional to 5,426.20, 8,139.27 and 2,305.73

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Solution

The fourth proportional to 5,426.20, 8,139.27 and 2,305.73 is: 3,458.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.20 : 8,139.27 = 2,305.73 : x
  2. Step 2: Convert to fraction form
    5,426.20/8,139.27 = 2,305.73/x
  3. Step 3: Cross multiply
    5,426.20x = 8,139.27 × 2,305.73
  4. Step 4: Simplify right side
    5,426.20x = 18,766,959.02
  5. Step 5: Solve for x
    x = 18,766,959.02/5,426.20
  6. Step 6: Final answer
    x = 3,458.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.