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Finding the Fourth Proportional to 6,622.62, 9,930.50 and 2,238.50

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Solution

The fourth proportional to 6,622.62, 9,930.50 and 2,238.50 is: 3,356.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.62 : 9,930.50 = 2,238.50 : x
  2. Step 2: Convert to fraction form
    6,622.62/9,930.50 = 2,238.50/x
  3. Step 3: Cross multiply
    6,622.62x = 9,930.50 × 2,238.50
  4. Step 4: Simplify right side
    6,622.62x = 22,229,424.25
  5. Step 5: Solve for x
    x = 22,229,424.25/6,622.62
  6. Step 6: Final answer
    x = 3,356.59

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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.