Home / 3,786.82-5,225.72-2,108.19

Finding the Fourth Proportional to 3,786.82, 5,225.72 and 2,108.19

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Solution

The fourth proportional to 3,786.82, 5,225.72 and 2,108.19 is: 2,909.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.82 : 5,225.72 = 2,108.19 : x
  2. Step 2: Convert to fraction form
    3,786.82/5,225.72 = 2,108.19/x
  3. Step 3: Cross multiply
    3,786.82x = 5,225.72 × 2,108.19
  4. Step 4: Simplify right side
    3,786.82x = 11,016,810.65
  5. Step 5: Solve for x
    x = 11,016,810.65/3,786.82
  6. Step 6: Final answer
    x = 2,909.25

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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.