Home / 2,192.18-3,287.18-805.46

Finding the Fourth Proportional to 2,192.18, 3,287.18 and 805.46

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Solution

The fourth proportional to 2,192.18, 3,287.18 and 805.46 is: 1,207.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.18 : 3,287.18 = 805.46 : x
  2. Step 2: Convert to fraction form
    2,192.18/3,287.18 = 805.46/x
  3. Step 3: Cross multiply
    2,192.18x = 3,287.18 × 805.46
  4. Step 4: Simplify right side
    2,192.18x = 2,647,671.54
  5. Step 5: Solve for x
    x = 2,647,671.54/2,192.18
  6. Step 6: Final answer
    x = 1,207.78

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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.