Home / 3,786.21-5,224.62-2,107.71

Finding the Fourth Proportional to 3,786.21, 5,224.62 and 2,107.71

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Solution

The fourth proportional to 3,786.21, 5,224.62 and 2,107.71 is: 2,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.21 : 5,224.62 = 2,107.71 : x
  2. Step 2: Convert to fraction form
    3,786.21/5,224.62 = 2,107.71/x
  3. Step 3: Cross multiply
    3,786.21x = 5,224.62 × 2,107.71
  4. Step 4: Simplify right side
    3,786.21x = 11,011,957.70
  5. Step 5: Solve for x
    x = 11,011,957.70/3,786.21
  6. Step 6: Final answer
    x = 2,908.44

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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.