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Finding the Fourth Proportional to 6,225, 9,338.46 and 2,121.96

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Solution

The fourth proportional to 6,225, 9,338.46 and 2,121.96 is: 3,183.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,225 : 9,338.46 = 2,121.96 : x
  2. Step 2: Convert to fraction form
    6,225/9,338.46 = 2,121.96/x
  3. Step 3: Cross multiply
    6,225x = 9,338.46 × 2,121.96
  4. Step 4: Simplify right side
    6,225x = 19,815,838.58
  5. Step 5: Solve for x
    x = 19,815,838.58/6,225
  6. Step 6: Final answer
    x = 3,183.27

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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.