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Finding the Fourth Proportional to 1,995.35, 2,994.49 and 747.09

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Solution

The fourth proportional to 1,995.35, 2,994.49 and 747.09 is: 1,121.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.35 : 2,994.49 = 747.09 : x
  2. Step 2: Convert to fraction form
    1,995.35/2,994.49 = 747.09/x
  3. Step 3: Cross multiply
    1,995.35x = 2,994.49 × 747.09
  4. Step 4: Simplify right side
    1,995.35x = 2,237,154.47
  5. Step 5: Solve for x
    x = 2,237,154.47/1,995.35
  6. Step 6: Final answer
    x = 1,121.19

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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.