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Finding the Fourth Proportional to 1,205.46, 1,797.63 and 1,194.51

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Solution

The fourth proportional to 1,205.46, 1,797.63 and 1,194.51 is: 1,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205.46 : 1,797.63 = 1,194.51 : x
  2. Step 2: Convert to fraction form
    1,205.46/1,797.63 = 1,194.51/x
  3. Step 3: Cross multiply
    1,205.46x = 1,797.63 × 1,194.51
  4. Step 4: Simplify right side
    1,205.46x = 2,147,287.01
  5. Step 5: Solve for x
    x = 2,147,287.01/1,205.46
  6. Step 6: Final answer
    x = 1,781.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.