Home / 5,121.20-7,067.19-2,852.54

Finding the Fourth Proportional to 5,121.20, 7,067.19 and 2,852.54

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Solution

The fourth proportional to 5,121.20, 7,067.19 and 2,852.54 is: 3,936.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.20 : 7,067.19 = 2,852.54 : x
  2. Step 2: Convert to fraction form
    5,121.20/7,067.19 = 2,852.54/x
  3. Step 3: Cross multiply
    5,121.20x = 7,067.19 × 2,852.54
  4. Step 4: Simplify right side
    5,121.20x = 20,159,442.16
  5. Step 5: Solve for x
    x = 20,159,442.16/5,121.20
  6. Step 6: Final answer
    x = 3,936.47

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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.