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Finding the Fourth Proportional to 1,996.03, 2,994.04 and 763.82

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Solution

The fourth proportional to 1,996.03, 2,994.04 and 763.82 is: 1,145.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.03 : 2,994.04 = 763.82 : x
  2. Step 2: Convert to fraction form
    1,996.03/2,994.04 = 763.82/x
  3. Step 3: Cross multiply
    1,996.03x = 2,994.04 × 763.82
  4. Step 4: Simplify right side
    1,996.03x = 2,286,893.62
  5. Step 5: Solve for x
    x = 2,286,893.62/1,996.03
  6. Step 6: Final answer
    x = 1,145.72

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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.