Home / 3,786.74-5,225.34-2,107.95

Finding the Fourth Proportional to 3,786.74, 5,225.34 and 2,107.95

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Solution

The fourth proportional to 3,786.74, 5,225.34 and 2,107.95 is: 2,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.74 : 5,225.34 = 2,107.95 : x
  2. Step 2: Convert to fraction form
    3,786.74/5,225.34 = 2,107.95/x
  3. Step 3: Cross multiply
    3,786.74x = 5,225.34 × 2,107.95
  4. Step 4: Simplify right side
    3,786.74x = 11,014,755.45
  5. Step 5: Solve for x
    x = 11,014,755.45/3,786.74
  6. Step 6: Final answer
    x = 2,908.77

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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.