Home / 3,921.82-5,881.22-1,581.02

Finding the Fourth Proportional to 3,921.82, 5,881.22 and 1,581.02

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Solution

The fourth proportional to 3,921.82, 5,881.22 and 1,581.02 is: 2,370.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.82 : 5,881.22 = 1,581.02 : x
  2. Step 2: Convert to fraction form
    3,921.82/5,881.22 = 1,581.02/x
  3. Step 3: Cross multiply
    3,921.82x = 5,881.22 × 1,581.02
  4. Step 4: Simplify right side
    3,921.82x = 9,298,326.44
  5. Step 5: Solve for x
    x = 9,298,326.44/3,921.82
  6. Step 6: Final answer
    x = 2,370.92

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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.