Home / 3,825.38-5,277.76-2,231.66

Finding the Fourth Proportional to 3,825.38, 5,277.76 and 2,231.66

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Solution

The fourth proportional to 3,825.38, 5,277.76 and 2,231.66 is: 3,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.38 : 5,277.76 = 2,231.66 : x
  2. Step 2: Convert to fraction form
    3,825.38/5,277.76 = 2,231.66/x
  3. Step 3: Cross multiply
    3,825.38x = 5,277.76 × 2,231.66
  4. Step 4: Simplify right side
    3,825.38x = 11,778,165.88
  5. Step 5: Solve for x
    x = 11,778,165.88/3,825.38
  6. Step 6: Final answer
    x = 3,078.95

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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.