Home / 6,128.66-9,185.85-2,791.91

Finding the Fourth Proportional to 6,128.66, 9,185.85 and 2,791.91

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Solution

The fourth proportional to 6,128.66, 9,185.85 and 2,791.91 is: 4,184.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.66 : 9,185.85 = 2,791.91 : x
  2. Step 2: Convert to fraction form
    6,128.66/9,185.85 = 2,791.91/x
  3. Step 3: Cross multiply
    6,128.66x = 9,185.85 × 2,791.91
  4. Step 4: Simplify right side
    6,128.66x = 25,646,020.54
  5. Step 5: Solve for x
    x = 25,646,020.54/6,128.66
  6. Step 6: Final answer
    x = 4,184.61

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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.