Home / 3,876.76-5,350.44-2,305.72

Finding the Fourth Proportional to 3,876.76, 5,350.44 and 2,305.72

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Solution

The fourth proportional to 3,876.76, 5,350.44 and 2,305.72 is: 3,182.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.76 : 5,350.44 = 2,305.72 : x
  2. Step 2: Convert to fraction form
    3,876.76/5,350.44 = 2,305.72/x
  3. Step 3: Cross multiply
    3,876.76x = 5,350.44 × 2,305.72
  4. Step 4: Simplify right side
    3,876.76x = 12,336,616.52
  5. Step 5: Solve for x
    x = 12,336,616.52/3,876.76
  6. Step 6: Final answer
    x = 3,182.20

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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.