Home / 5,121.23-7,067.49-2,883.52

Finding the Fourth Proportional to 5,121.23, 7,067.49 and 2,883.52

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Solution

The fourth proportional to 5,121.23, 7,067.49 and 2,883.52 is: 3,979.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.23 : 7,067.49 = 2,883.52 : x
  2. Step 2: Convert to fraction form
    5,121.23/7,067.49 = 2,883.52/x
  3. Step 3: Cross multiply
    5,121.23x = 7,067.49 × 2,883.52
  4. Step 4: Simplify right side
    5,121.23x = 20,379,213.43
  5. Step 5: Solve for x
    x = 20,379,213.43/5,121.23
  6. Step 6: Final answer
    x = 3,979.36

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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.