Home / 5,122.12-7,067.46-3,133.12

Finding the Fourth Proportional to 5,122.12, 7,067.46 and 3,133.12

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Solution

The fourth proportional to 5,122.12, 7,067.46 and 3,133.12 is: 4,323.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.12 : 7,067.46 = 3,133.12 : x
  2. Step 2: Convert to fraction form
    5,122.12/7,067.46 = 3,133.12/x
  3. Step 3: Cross multiply
    5,122.12x = 7,067.46 × 3,133.12
  4. Step 4: Simplify right side
    5,122.12x = 22,143,200.28
  5. Step 5: Solve for x
    x = 22,143,200.28/5,122.12
  6. Step 6: Final answer
    x = 4,323.05

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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.