Home / 7,067.78-9,753.64-3,881.36

Finding the Fourth Proportional to 7,067.78, 9,753.64 and 3,881.36

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Solution

The fourth proportional to 7,067.78, 9,753.64 and 3,881.36 is: 5,356.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,067.78 : 9,753.64 = 3,881.36 : x
  2. Step 2: Convert to fraction form
    7,067.78/9,753.64 = 3,881.36/x
  3. Step 3: Cross multiply
    7,067.78x = 9,753.64 × 3,881.36
  4. Step 4: Simplify right side
    7,067.78x = 37,857,388.15
  5. Step 5: Solve for x
    x = 37,857,388.15/7,067.78
  6. Step 6: Final answer
    x = 5,356.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.