Home / 3,951.12-5,930.26-2,103.80

Finding the Fourth Proportional to 3,951.12, 5,930.26 and 2,103.80

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Solution

The fourth proportional to 3,951.12, 5,930.26 and 2,103.80 is: 3,157.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.12 : 5,930.26 = 2,103.80 : x
  2. Step 2: Convert to fraction form
    3,951.12/5,930.26 = 2,103.80/x
  3. Step 3: Cross multiply
    3,951.12x = 5,930.26 × 2,103.80
  4. Step 4: Simplify right side
    3,951.12x = 12,476,080.99
  5. Step 5: Solve for x
    x = 12,476,080.99/3,951.12
  6. Step 6: Final answer
    x = 3,157.61

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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.