Home / 3,986.28-5,982.19-1,648.39

Finding the Fourth Proportional to 3,986.28, 5,982.19 and 1,648.39

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Solution

The fourth proportional to 3,986.28, 5,982.19 and 1,648.39 is: 2,473.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.28 : 5,982.19 = 1,648.39 : x
  2. Step 2: Convert to fraction form
    3,986.28/5,982.19 = 1,648.39/x
  3. Step 3: Cross multiply
    3,986.28x = 5,982.19 × 1,648.39
  4. Step 4: Simplify right side
    3,986.28x = 9,860,982.17
  5. Step 5: Solve for x
    x = 9,860,982.17/3,986.28
  6. Step 6: Final answer
    x = 2,473.73

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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.