Home / 4,129.92-6,198.12-2,668.68

Finding the Fourth Proportional to 4,129.92, 6,198.12 and 2,668.68

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Solution

The fourth proportional to 4,129.92, 6,198.12 and 2,668.68 is: 4,005.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.92 : 6,198.12 = 2,668.68 : x
  2. Step 2: Convert to fraction form
    4,129.92/6,198.12 = 2,668.68/x
  3. Step 3: Cross multiply
    4,129.92x = 6,198.12 × 2,668.68
  4. Step 4: Simplify right side
    4,129.92x = 16,540,798.88
  5. Step 5: Solve for x
    x = 16,540,798.88/4,129.92
  6. Step 6: Final answer
    x = 4,005.11

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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.