Home / 3,988.26-5,982.37-1,679.76

Finding the Fourth Proportional to 3,988.26, 5,982.37 and 1,679.76

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Solution

The fourth proportional to 3,988.26, 5,982.37 and 1,679.76 is: 2,519.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.26 : 5,982.37 = 1,679.76 : x
  2. Step 2: Convert to fraction form
    3,988.26/5,982.37 = 1,679.76/x
  3. Step 3: Cross multiply
    3,988.26x = 5,982.37 × 1,679.76
  4. Step 4: Simplify right side
    3,988.26x = 10,048,945.83
  5. Step 5: Solve for x
    x = 10,048,945.83/3,988.26
  6. Step 6: Final answer
    x = 2,519.63

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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.