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Finding the Fourth Proportional to 6,212.76, 9,310.38 and 4,819.62

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Solution

The fourth proportional to 6,212.76, 9,310.38 and 4,819.62 is: 7,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,212.76 : 9,310.38 = 4,819.62 : x
  2. Step 2: Convert to fraction form
    6,212.76/9,310.38 = 4,819.62/x
  3. Step 3: Cross multiply
    6,212.76x = 9,310.38 × 4,819.62
  4. Step 4: Simplify right side
    6,212.76x = 44,872,493.66
  5. Step 5: Solve for x
    x = 44,872,493.66/6,212.76
  6. Step 6: Final answer
    x = 7,222.63

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1.5x scale

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.