Home / 3,876.24-5,350.68-2,305.20

Finding the Fourth Proportional to 3,876.24, 5,350.68 and 2,305.20

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Solution

The fourth proportional to 3,876.24, 5,350.68 and 2,305.20 is: 3,182.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.24 : 5,350.68 = 2,305.20 : x
  2. Step 2: Convert to fraction form
    3,876.24/5,350.68 = 2,305.20/x
  3. Step 3: Cross multiply
    3,876.24x = 5,350.68 × 2,305.20
  4. Step 4: Simplify right side
    3,876.24x = 12,334,387.54
  5. Step 5: Solve for x
    x = 12,334,387.54/3,876.24
  6. Step 6: Final answer
    x = 3,182.05

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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.