Home / 6,819.66-10,219.77-3,898.80

Finding the Fourth Proportional to 6,819.66, 10,219.77 and 3,898.80

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Solution

The fourth proportional to 6,819.66, 10,219.77 and 3,898.80 is: 5,842.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819.66 : 10,219.77 = 3,898.80 : x
  2. Step 2: Convert to fraction form
    6,819.66/10,219.77 = 3,898.80/x
  3. Step 3: Cross multiply
    6,819.66x = 10,219.77 × 3,898.80
  4. Step 4: Simplify right side
    6,819.66x = 39,844,839.28
  5. Step 5: Solve for x
    x = 39,844,839.28/6,819.66
  6. Step 6: Final answer
    x = 5,842.64

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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.