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Finding the Fourth Proportional to 6,812, 10,220.46 and 3,351.68

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Solution

The fourth proportional to 6,812, 10,220.46 and 3,351.68 is: 5,028.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,812 : 10,220.46 = 3,351.68 : x
  2. Step 2: Convert to fraction form
    6,812/10,220.46 = 3,351.68/x
  3. Step 3: Cross multiply
    6,812x = 10,220.46 × 3,351.68
  4. Step 4: Simplify right side
    6,812x = 34,255,711.37
  5. Step 5: Solve for x
    x = 34,255,711.37/6,812
  6. Step 6: Final answer
    x = 5,028.73

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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.