Home / 5,121.52-7,067.64-3,025.60

Finding the Fourth Proportional to 5,121.52, 7,067.64 and 3,025.60

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Solution

The fourth proportional to 5,121.52, 7,067.64 and 3,025.60 is: 4,175.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.52 : 7,067.64 = 3,025.60 : x
  2. Step 2: Convert to fraction form
    5,121.52/7,067.64 = 3,025.60/x
  3. Step 3: Cross multiply
    5,121.52x = 7,067.64 × 3,025.60
  4. Step 4: Simplify right side
    5,121.52x = 21,383,851.58
  5. Step 5: Solve for x
    x = 21,383,851.58/5,121.52
  6. Step 6: Final answer
    x = 4,175.29

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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.