Home / 3,994.38-5,515.70-3,338.28

Finding the Fourth Proportional to 3,994.38, 5,515.70 and 3,338.28

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Solution

The fourth proportional to 3,994.38, 5,515.70 and 3,338.28 is: 4,609.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.38 : 5,515.70 = 3,338.28 : x
  2. Step 2: Convert to fraction form
    3,994.38/5,515.70 = 3,338.28/x
  3. Step 3: Cross multiply
    3,994.38x = 5,515.70 × 3,338.28
  4. Step 4: Simplify right side
    3,994.38x = 18,412,934.30
  5. Step 5: Solve for x
    x = 18,412,934.30/3,994.38
  6. Step 6: Final answer
    x = 4,609.71

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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.