Home / 3,786.86-5,228.44-2,371.12

Finding the Fourth Proportional to 3,786.86, 5,228.44 and 2,371.12

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Solution

The fourth proportional to 3,786.86, 5,228.44 and 2,371.12 is: 3,273.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.86 : 5,228.44 = 2,371.12 : x
  2. Step 2: Convert to fraction form
    3,786.86/5,228.44 = 2,371.12/x
  3. Step 3: Cross multiply
    3,786.86x = 5,228.44 × 2,371.12
  4. Step 4: Simplify right side
    3,786.86x = 12,397,239.65
  5. Step 5: Solve for x
    x = 12,397,239.65/3,786.86
  6. Step 6: Final answer
    x = 3,273.75

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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.