Home / 3,680.70-5,072.40-2,843.97

Finding the Fourth Proportional to 3,680.70, 5,072.40 and 2,843.97

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Solution

The fourth proportional to 3,680.70, 5,072.40 and 2,843.97 is: 3,919.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.70 : 5,072.40 = 2,843.97 : x
  2. Step 2: Convert to fraction form
    3,680.70/5,072.40 = 2,843.97/x
  3. Step 3: Cross multiply
    3,680.70x = 5,072.40 × 2,843.97
  4. Step 4: Simplify right side
    3,680.70x = 14,425,753.43
  5. Step 5: Solve for x
    x = 14,425,753.43/3,680.70
  6. Step 6: Final answer
    x = 3,919.30

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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.