Home / 3,678.98-5,067.27-2,839.73

Finding the Fourth Proportional to 3,678.98, 5,067.27 and 2,839.73

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Solution

The fourth proportional to 3,678.98, 5,067.27 and 2,839.73 is: 3,911.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.98 : 5,067.27 = 2,839.73 : x
  2. Step 2: Convert to fraction form
    3,678.98/5,067.27 = 2,839.73/x
  3. Step 3: Cross multiply
    3,678.98x = 5,067.27 × 2,839.73
  4. Step 4: Simplify right side
    3,678.98x = 14,389,653.30
  5. Step 5: Solve for x
    x = 14,389,653.30/3,678.98
  6. Step 6: Final answer
    x = 3,911.32

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1.5x scale

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.