Home / 3,982.11-5,971.14-2,109.03

Finding the Fourth Proportional to 3,982.11, 5,971.14 and 2,109.03

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Solution

The fourth proportional to 3,982.11, 5,971.14 and 2,109.03 is: 3,162.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.11 : 5,971.14 = 2,109.03 : x
  2. Step 2: Convert to fraction form
    3,982.11/5,971.14 = 2,109.03/x
  3. Step 3: Cross multiply
    3,982.11x = 5,971.14 × 2,109.03
  4. Step 4: Simplify right side
    3,982.11x = 12,593,313.39
  5. Step 5: Solve for x
    x = 12,593,313.39/3,982.11
  6. Step 6: Final answer
    x = 3,162.47

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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.