Home / 8,231.58-12,348.18-2,684.70

Finding the Fourth Proportional to 8,231.58, 12,348.18 and 2,684.70

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Solution

The fourth proportional to 8,231.58, 12,348.18 and 2,684.70 is: 4,027.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.58 : 12,348.18 = 2,684.70 : x
  2. Step 2: Convert to fraction form
    8,231.58/12,348.18 = 2,684.70/x
  3. Step 3: Cross multiply
    8,231.58x = 12,348.18 × 2,684.70
  4. Step 4: Simplify right side
    8,231.58x = 33,151,083.68
  5. Step 5: Solve for x
    x = 33,151,083.68/8,231.58
  6. Step 6: Final answer
    x = 4,027.31

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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.