Home / 3,786.31-5,225.16-2,107.73

Finding the Fourth Proportional to 3,786.31, 5,225.16 and 2,107.73

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Solution

The fourth proportional to 3,786.31, 5,225.16 and 2,107.73 is: 2,908.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.31 : 5,225.16 = 2,107.73 : x
  2. Step 2: Convert to fraction form
    3,786.31/5,225.16 = 2,107.73/x
  3. Step 3: Cross multiply
    3,786.31x = 5,225.16 × 2,107.73
  4. Step 4: Simplify right side
    3,786.31x = 11,013,226.49
  5. Step 5: Solve for x
    x = 11,013,226.49/3,786.31
  6. Step 6: Final answer
    x = 2,908.70

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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.