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Finding the Fourth Proportional to 1,966.62, 2,714.04 and 1,180.80

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Solution

The fourth proportional to 1,966.62, 2,714.04 and 1,180.80 is: 1,629.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.62 : 2,714.04 = 1,180.80 : x
  2. Step 2: Convert to fraction form
    1,966.62/2,714.04 = 1,180.80/x
  3. Step 3: Cross multiply
    1,966.62x = 2,714.04 × 1,180.80
  4. Step 4: Simplify right side
    1,966.62x = 3,204,738.43
  5. Step 5: Solve for x
    x = 3,204,738.43/1,966.62
  6. Step 6: Final answer
    x = 1,629.57

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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.