Home / 3,786.40-5,223.72-2,192.73

Finding the Fourth Proportional to 3,786.40, 5,223.72 and 2,192.73

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Solution

The fourth proportional to 3,786.40, 5,223.72 and 2,192.73 is: 3,025.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.40 : 5,223.72 = 2,192.73 : x
  2. Step 2: Convert to fraction form
    3,786.40/5,223.72 = 2,192.73/x
  3. Step 3: Cross multiply
    3,786.40x = 5,223.72 × 2,192.73
  4. Step 4: Simplify right side
    3,786.40x = 11,454,207.56
  5. Step 5: Solve for x
    x = 11,454,207.56/3,786.40
  6. Step 6: Final answer
    x = 3,025.09

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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.