Home / 3,531.33-5,286.42-2,140.43

Finding the Fourth Proportional to 3,531.33, 5,286.42 and 2,140.43

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Solution

The fourth proportional to 3,531.33, 5,286.42 and 2,140.43 is: 3,204.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.33 : 5,286.42 = 2,140.43 : x
  2. Step 2: Convert to fraction form
    3,531.33/5,286.42 = 2,140.43/x
  3. Step 3: Cross multiply
    3,531.33x = 5,286.42 × 2,140.43
  4. Step 4: Simplify right side
    3,531.33x = 11,315,185.53
  5. Step 5: Solve for x
    x = 11,315,185.53/3,531.33
  6. Step 6: Final answer
    x = 3,204.23

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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.