Home / 3,881.28-5,357.40-2,203.82

Finding the Fourth Proportional to 3,881.28, 5,357.40 and 2,203.82

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Solution

The fourth proportional to 3,881.28, 5,357.40 and 2,203.82 is: 3,041.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.28 : 5,357.40 = 2,203.82 : x
  2. Step 2: Convert to fraction form
    3,881.28/5,357.40 = 2,203.82/x
  3. Step 3: Cross multiply
    3,881.28x = 5,357.40 × 2,203.82
  4. Step 4: Simplify right side
    3,881.28x = 11,806,745.27
  5. Step 5: Solve for x
    x = 11,806,745.27/3,881.28
  6. Step 6: Final answer
    x = 3,041.97

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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.