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Finding the Fourth Proportional to 1,198.22, 1,797.21 and 376.58

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Solution

The fourth proportional to 1,198.22, 1,797.21 and 376.58 is: 564.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198.22 : 1,797.21 = 376.58 : x
  2. Step 2: Convert to fraction form
    1,198.22/1,797.21 = 376.58/x
  3. Step 3: Cross multiply
    1,198.22x = 1,797.21 × 376.58
  4. Step 4: Simplify right side
    1,198.22x = 676,797.83
  5. Step 5: Solve for x
    x = 676,797.83/1,198.22
  6. Step 6: Final answer
    x = 564.84

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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.