Home / 6,819.27-10,230.30-2,139.09

Finding the Fourth Proportional to 6,819.27, 10,230.30 and 2,139.09

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Solution

The fourth proportional to 6,819.27, 10,230.30 and 2,139.09 is: 3,209.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819.27 : 10,230.30 = 2,139.09 : x
  2. Step 2: Convert to fraction form
    6,819.27/10,230.30 = 2,139.09/x
  3. Step 3: Cross multiply
    6,819.27x = 10,230.30 × 2,139.09
  4. Step 4: Simplify right side
    6,819.27x = 21,883,532.43
  5. Step 5: Solve for x
    x = 21,883,532.43/6,819.27
  6. Step 6: Final answer
    x = 3,209.07

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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.