Home / 3,982.83-5,975.87-1,385.97

Finding the Fourth Proportional to 3,982.83, 5,975.87 and 1,385.97

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Solution

The fourth proportional to 3,982.83, 5,975.87 and 1,385.97 is: 2,079.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.83 : 5,975.87 = 1,385.97 : x
  2. Step 2: Convert to fraction form
    3,982.83/5,975.87 = 1,385.97/x
  3. Step 3: Cross multiply
    3,982.83x = 5,975.87 × 1,385.97
  4. Step 4: Simplify right side
    3,982.83x = 8,282,369.61
  5. Step 5: Solve for x
    x = 8,282,369.61/3,982.83
  6. Step 6: Final answer
    x = 2,079.52

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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.