Home / 3,786.49-5,226.21-2,108.50

Finding the Fourth Proportional to 3,786.49, 5,226.21 and 2,108.50

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Solution

The fourth proportional to 3,786.49, 5,226.21 and 2,108.50 is: 2,910.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.49 : 5,226.21 = 2,108.50 : x
  2. Step 2: Convert to fraction form
    3,786.49/5,226.21 = 2,108.50/x
  3. Step 3: Cross multiply
    3,786.49x = 5,226.21 × 2,108.50
  4. Step 4: Simplify right side
    3,786.49x = 11,019,463.79
  5. Step 5: Solve for x
    x = 11,019,463.79/3,786.49
  6. Step 6: Final answer
    x = 2,910.21

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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.