Home / 3,786.41-5,225.40-2,107.76

Finding the Fourth Proportional to 3,786.41, 5,225.40 and 2,107.76

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Solution

The fourth proportional to 3,786.41, 5,225.40 and 2,107.76 is: 2,908.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.41 : 5,225.40 = 2,107.76 : x
  2. Step 2: Convert to fraction form
    3,786.41/5,225.40 = 2,107.76/x
  3. Step 3: Cross multiply
    3,786.41x = 5,225.40 × 2,107.76
  4. Step 4: Simplify right side
    3,786.41x = 11,013,862.98
  5. Step 5: Solve for x
    x = 11,013,862.98/3,786.41
  6. Step 6: Final answer
    x = 2,908.79

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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.