Home / 2,619.88-3,923.10-2,185.96

Finding the Fourth Proportional to 2,619.88, 3,923.10 and 2,185.96

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Solution

The fourth proportional to 2,619.88, 3,923.10 and 2,185.96 is: 3,273.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.88 : 3,923.10 = 2,185.96 : x
  2. Step 2: Convert to fraction form
    2,619.88/3,923.10 = 2,185.96/x
  3. Step 3: Cross multiply
    2,619.88x = 3,923.10 × 2,185.96
  4. Step 4: Simplify right side
    2,619.88x = 8,575,739.68
  5. Step 5: Solve for x
    x = 8,575,739.68/2,619.88
  6. Step 6: Final answer
    x = 3,273.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.