Home / 6,981.36-10,469.36-2,819.92

Finding the Fourth Proportional to 6,981.36, 10,469.36 and 2,819.92

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Solution

The fourth proportional to 6,981.36, 10,469.36 and 2,819.92 is: 4,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.36 : 10,469.36 = 2,819.92 : x
  2. Step 2: Convert to fraction form
    6,981.36/10,469.36 = 2,819.92/x
  3. Step 3: Cross multiply
    6,981.36x = 10,469.36 × 2,819.92
  4. Step 4: Simplify right side
    6,981.36x = 29,522,757.65
  5. Step 5: Solve for x
    x = 29,522,757.65/6,981.36
  6. Step 6: Final answer
    x = 4,228.80

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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.