Home / 6,212.75-9,310.39-4,819.61

Finding the Fourth Proportional to 6,212.75, 9,310.39 and 4,819.61

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Solution

The fourth proportional to 6,212.75, 9,310.39 and 4,819.61 is: 7,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,212.75 : 9,310.39 = 4,819.61 : x
  2. Step 2: Convert to fraction form
    6,212.75/9,310.39 = 4,819.61/x
  3. Step 3: Cross multiply
    6,212.75x = 9,310.39 × 4,819.61
  4. Step 4: Simplify right side
    6,212.75x = 44,872,448.75
  5. Step 5: Solve for x
    x = 44,872,448.75/6,212.75
  6. Step 6: Final answer
    x = 7,222.64

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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.