Home / 5,121.41-7,067.61-2,998.26

Finding the Fourth Proportional to 5,121.41, 7,067.61 and 2,998.26

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Solution

The fourth proportional to 5,121.41, 7,067.61 and 2,998.26 is: 4,137.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.41 : 7,067.61 = 2,998.26 : x
  2. Step 2: Convert to fraction form
    5,121.41/7,067.61 = 2,998.26/x
  3. Step 3: Cross multiply
    5,121.41x = 7,067.61 × 2,998.26
  4. Step 4: Simplify right side
    5,121.41x = 21,190,532.36
  5. Step 5: Solve for x
    x = 21,190,532.36/5,121.41
  6. Step 6: Final answer
    x = 4,137.64

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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.