Home / 5,811.74-8,713.91-2,687.57

Finding the Fourth Proportional to 5,811.74, 8,713.91 and 2,687.57

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Solution

The fourth proportional to 5,811.74, 8,713.91 and 2,687.57 is: 4,029.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.74 : 8,713.91 = 2,687.57 : x
  2. Step 2: Convert to fraction form
    5,811.74/8,713.91 = 2,687.57/x
  3. Step 3: Cross multiply
    5,811.74x = 8,713.91 × 2,687.57
  4. Step 4: Simplify right side
    5,811.74x = 23,419,186.09
  5. Step 5: Solve for x
    x = 23,419,186.09/5,811.74
  6. Step 6: Final answer
    x = 4,029.64

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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.