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Finding the Fourth Proportional to 3,079.94, 4,250.49 and 1,821.73

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Solution

The fourth proportional to 3,079.94, 4,250.49 and 1,821.73 is: 2,514.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.94 : 4,250.49 = 1,821.73 : x
  2. Step 2: Convert to fraction form
    3,079.94/4,250.49 = 1,821.73/x
  3. Step 3: Cross multiply
    3,079.94x = 4,250.49 × 1,821.73
  4. Step 4: Simplify right side
    3,079.94x = 7,743,245.15
  5. Step 5: Solve for x
    x = 7,743,245.15/3,079.94
  6. Step 6: Final answer
    x = 2,514.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.