Home / 2,132.44-3,198.31-900.16

Finding the Fourth Proportional to 2,132.44, 3,198.31 and 900.16

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Solution

The fourth proportional to 2,132.44, 3,198.31 and 900.16 is: 1,350.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.44 : 3,198.31 = 900.16 : x
  2. Step 2: Convert to fraction form
    2,132.44/3,198.31 = 900.16/x
  3. Step 3: Cross multiply
    2,132.44x = 3,198.31 × 900.16
  4. Step 4: Simplify right side
    2,132.44x = 2,878,990.73
  5. Step 5: Solve for x
    x = 2,878,990.73/2,132.44
  6. Step 6: Final answer
    x = 1,350.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.