Home / 3,786.48-5,225.31-2,107.85

Finding the Fourth Proportional to 3,786.48, 5,225.31 and 2,107.85

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Solution

The fourth proportional to 3,786.48, 5,225.31 and 2,107.85 is: 2,908.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.48 : 5,225.31 = 2,107.85 : x
  2. Step 2: Convert to fraction form
    3,786.48/5,225.31 = 2,107.85/x
  3. Step 3: Cross multiply
    3,786.48x = 5,225.31 × 2,107.85
  4. Step 4: Simplify right side
    3,786.48x = 11,014,143.56
  5. Step 5: Solve for x
    x = 11,014,143.56/3,786.48
  6. Step 6: Final answer
    x = 2,908.81

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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.