Home / 5,740.26-8,611.15-1,791.78

Finding the Fourth Proportional to 5,740.26, 8,611.15 and 1,791.78

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Solution

The fourth proportional to 5,740.26, 8,611.15 and 1,791.78 is: 2,687.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,740.26 : 8,611.15 = 1,791.78 : x
  2. Step 2: Convert to fraction form
    5,740.26/8,611.15 = 1,791.78/x
  3. Step 3: Cross multiply
    5,740.26x = 8,611.15 × 1,791.78
  4. Step 4: Simplify right side
    5,740.26x = 15,429,286.35
  5. Step 5: Solve for x
    x = 15,429,286.35/5,740.26
  6. Step 6: Final answer
    x = 2,687.91

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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.