Home / 8,231.10-12,348.45-2,684.70

Finding the Fourth Proportional to 8,231.10, 12,348.45 and 2,684.70

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Solution

The fourth proportional to 8,231.10, 12,348.45 and 2,684.70 is: 4,027.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.10 : 12,348.45 = 2,684.70 : x
  2. Step 2: Convert to fraction form
    8,231.10/12,348.45 = 2,684.70/x
  3. Step 3: Cross multiply
    8,231.10x = 12,348.45 × 2,684.70
  4. Step 4: Simplify right side
    8,231.10x = 33,151,883.72
  5. Step 5: Solve for x
    x = 33,151,883.72/8,231.10
  6. Step 6: Final answer
    x = 4,027.64

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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.