Home / 3,982.26-5,496.21-2,489.70

Finding the Fourth Proportional to 3,982.26, 5,496.21 and 2,489.70

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Solution

The fourth proportional to 3,982.26, 5,496.21 and 2,489.70 is: 3,436.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.26 : 5,496.21 = 2,489.70 : x
  2. Step 2: Convert to fraction form
    3,982.26/5,496.21 = 2,489.70/x
  3. Step 3: Cross multiply
    3,982.26x = 5,496.21 × 2,489.70
  4. Step 4: Simplify right side
    3,982.26x = 13,683,914.04
  5. Step 5: Solve for x
    x = 13,683,914.04/3,982.26
  6. Step 6: Final answer
    x = 3,436.22

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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.