Home / 3,893.78-5,841.58-1,120.38

Finding the Fourth Proportional to 3,893.78, 5,841.58 and 1,120.38

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Solution

The fourth proportional to 3,893.78, 5,841.58 and 1,120.38 is: 1,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.78 : 5,841.58 = 1,120.38 : x
  2. Step 2: Convert to fraction form
    3,893.78/5,841.58 = 1,120.38/x
  3. Step 3: Cross multiply
    3,893.78x = 5,841.58 × 1,120.38
  4. Step 4: Simplify right side
    3,893.78x = 6,544,789.40
  5. Step 5: Solve for x
    x = 6,544,789.40/3,893.78
  6. Step 6: Final answer
    x = 1,680.83

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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.