Home / 3,581.33-4,942.05-1,987.97

Finding the Fourth Proportional to 3,581.33, 4,942.05 and 1,987.97

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Solution

The fourth proportional to 3,581.33, 4,942.05 and 1,987.97 is: 2,743.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.33 : 4,942.05 = 1,987.97 : x
  2. Step 2: Convert to fraction form
    3,581.33/4,942.05 = 1,987.97/x
  3. Step 3: Cross multiply
    3,581.33x = 4,942.05 × 1,987.97
  4. Step 4: Simplify right side
    3,581.33x = 9,824,622.43
  5. Step 5: Solve for x
    x = 9,824,622.43/3,581.33
  6. Step 6: Final answer
    x = 2,743.29

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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.