Home / 5,169.27-7,133.62-2,811.41

Finding the Fourth Proportional to 5,169.27, 7,133.62 and 2,811.41

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Solution

The fourth proportional to 5,169.27, 7,133.62 and 2,811.41 is: 3,879.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.27 : 7,133.62 = 2,811.41 : x
  2. Step 2: Convert to fraction form
    5,169.27/7,133.62 = 2,811.41/x
  3. Step 3: Cross multiply
    5,169.27x = 7,133.62 × 2,811.41
  4. Step 4: Simplify right side
    5,169.27x = 20,055,530.60
  5. Step 5: Solve for x
    x = 20,055,530.60/5,169.27
  6. Step 6: Final answer
    x = 3,879.76

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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.