Home / 3,794.39-5,236.25-2,115.79

Finding the Fourth Proportional to 3,794.39, 5,236.25 and 2,115.79

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Solution

The fourth proportional to 3,794.39, 5,236.25 and 2,115.79 is: 2,919.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,794.39 : 5,236.25 = 2,115.79 : x
  2. Step 2: Convert to fraction form
    3,794.39/5,236.25 = 2,115.79/x
  3. Step 3: Cross multiply
    3,794.39x = 5,236.25 × 2,115.79
  4. Step 4: Simplify right side
    3,794.39x = 11,078,805.39
  5. Step 5: Solve for x
    x = 11,078,805.39/3,794.39
  6. Step 6: Final answer
    x = 2,919.79

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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.