Home / 2,996.85-4,472.38-2,668.80

Finding the Fourth Proportional to 2,996.85, 4,472.38 and 2,668.80

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Solution

The fourth proportional to 2,996.85, 4,472.38 and 2,668.80 is: 3,982.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,996.85 : 4,472.38 = 2,668.80 : x
  2. Step 2: Convert to fraction form
    2,996.85/4,472.38 = 2,668.80/x
  3. Step 3: Cross multiply
    2,996.85x = 4,472.38 × 2,668.80
  4. Step 4: Simplify right side
    2,996.85x = 11,935,872.05
  5. Step 5: Solve for x
    x = 11,935,872.05/2,996.85
  6. Step 6: Final answer
    x = 3,982.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.