Home / 8,146.80-12,212.82-2,949

Finding the Fourth Proportional to 8,146.80, 12,212.82 and 2,949

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Solution

The fourth proportional to 8,146.80, 12,212.82 and 2,949 is: 4,420.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,146.80 : 12,212.82 = 2,949 : x
  2. Step 2: Convert to fraction form
    8,146.80/12,212.82 = 2,949/x
  3. Step 3: Cross multiply
    8,146.80x = 12,212.82 × 2,949
  4. Step 4: Simplify right side
    8,146.80x = 36,015,606.18
  5. Step 5: Solve for x
    x = 36,015,606.18/8,146.80
  6. Step 6: Final answer
    x = 4,420.83

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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.