Home / 3,794.47-5,236.35-2,115.86

Finding the Fourth Proportional to 3,794.47, 5,236.35 and 2,115.86

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Solution

The fourth proportional to 3,794.47, 5,236.35 and 2,115.86 is: 2,919.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,794.47 : 5,236.35 = 2,115.86 : x
  2. Step 2: Convert to fraction form
    3,794.47/5,236.35 = 2,115.86/x
  3. Step 3: Cross multiply
    3,794.47x = 5,236.35 × 2,115.86
  4. Step 4: Simplify right side
    3,794.47x = 11,079,383.51
  5. Step 5: Solve for x
    x = 11,079,383.51/3,794.47
  6. Step 6: Final answer
    x = 2,919.88

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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.