Home / 7,910.60-11,865.89-2,067.21

Finding the Fourth Proportional to 7,910.60, 11,865.89 and 2,067.21

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Solution

The fourth proportional to 7,910.60, 11,865.89 and 2,067.21 is: 3,100.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910.60 : 11,865.89 = 2,067.21 : x
  2. Step 2: Convert to fraction form
    7,910.60/11,865.89 = 2,067.21/x
  3. Step 3: Cross multiply
    7,910.60x = 11,865.89 × 2,067.21
  4. Step 4: Simplify right side
    7,910.60x = 24,529,291.63
  5. Step 5: Solve for x
    x = 24,529,291.63/7,910.60
  6. Step 6: Final answer
    x = 3,100.82

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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.