Home / 3,786.66-5,225.91-2,108.04

Finding the Fourth Proportional to 3,786.66, 5,225.91 and 2,108.04

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Solution

The fourth proportional to 3,786.66, 5,225.91 and 2,108.04 is: 2,909.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.66 : 5,225.91 = 2,108.04 : x
  2. Step 2: Convert to fraction form
    3,786.66/5,225.91 = 2,108.04/x
  3. Step 3: Cross multiply
    3,786.66x = 5,225.91 × 2,108.04
  4. Step 4: Simplify right side
    3,786.66x = 11,016,427.32
  5. Step 5: Solve for x
    x = 11,016,427.32/3,786.66
  6. Step 6: Final answer
    x = 2,909.27

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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.