Home / 3,329.82-4,985.78-2,668.72

Finding the Fourth Proportional to 3,329.82, 4,985.78 and 2,668.72

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Solution

The fourth proportional to 3,329.82, 4,985.78 and 2,668.72 is: 3,995.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,329.82 : 4,985.78 = 2,668.72 : x
  2. Step 2: Convert to fraction form
    3,329.82/4,985.78 = 2,668.72/x
  3. Step 3: Cross multiply
    3,329.82x = 4,985.78 × 2,668.72
  4. Step 4: Simplify right side
    3,329.82x = 13,305,650.80
  5. Step 5: Solve for x
    x = 13,305,650.80/3,329.82
  6. Step 6: Final answer
    x = 3,995.91

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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.