Home / 3,840.67-5,761.95-1,375.66

Finding the Fourth Proportional to 3,840.67, 5,761.95 and 1,375.66

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Solution

The fourth proportional to 3,840.67, 5,761.95 and 1,375.66 is: 2,063.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.67 : 5,761.95 = 1,375.66 : x
  2. Step 2: Convert to fraction form
    3,840.67/5,761.95 = 1,375.66/x
  3. Step 3: Cross multiply
    3,840.67x = 5,761.95 × 1,375.66
  4. Step 4: Simplify right side
    3,840.67x = 7,926,484.14
  5. Step 5: Solve for x
    x = 7,926,484.14/3,840.67
  6. Step 6: Final answer
    x = 2,063.83

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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.