Home / 3,228.62-4,843.45-1,379.75

Finding the Fourth Proportional to 3,228.62, 4,843.45 and 1,379.75

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Solution

The fourth proportional to 3,228.62, 4,843.45 and 1,379.75 is: 2,069.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.62 : 4,843.45 = 1,379.75 : x
  2. Step 2: Convert to fraction form
    3,228.62/4,843.45 = 1,379.75/x
  3. Step 3: Cross multiply
    3,228.62x = 4,843.45 × 1,379.75
  4. Step 4: Simplify right side
    3,228.62x = 6,682,750.14
  5. Step 5: Solve for x
    x = 6,682,750.14/3,228.62
  6. Step 6: Final answer
    x = 2,069.85

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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.