Home / 3,794.40-5,236.08-2,115.99

Finding the Fourth Proportional to 3,794.40, 5,236.08 and 2,115.99

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Solution

The fourth proportional to 3,794.40, 5,236.08 and 2,115.99 is: 2,919.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,794.40 : 5,236.08 = 2,115.99 : x
  2. Step 2: Convert to fraction form
    3,794.40/5,236.08 = 2,115.99/x
  3. Step 3: Cross multiply
    3,794.40x = 5,236.08 × 2,115.99
  4. Step 4: Simplify right side
    3,794.40x = 11,079,492.92
  5. Step 5: Solve for x
    x = 11,079,492.92/3,794.40
  6. Step 6: Final answer
    x = 2,919.96

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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.