Home / 3,982.30-5,976.56-2,758.30

Finding the Fourth Proportional to 3,982.30, 5,976.56 and 2,758.30

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Solution

The fourth proportional to 3,982.30, 5,976.56 and 2,758.30 is: 4,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.30 : 5,976.56 = 2,758.30 : x
  2. Step 2: Convert to fraction form
    3,982.30/5,976.56 = 2,758.30/x
  3. Step 3: Cross multiply
    3,982.30x = 5,976.56 × 2,758.30
  4. Step 4: Simplify right side
    3,982.30x = 16,485,137.40
  5. Step 5: Solve for x
    x = 16,485,137.40/3,982.30
  6. Step 6: Final answer
    x = 4,139.60

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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.