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Finding the Fourth Proportional to 1,996.63, 2,995.28 and 900.97

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Solution

The fourth proportional to 1,996.63, 2,995.28 and 900.97 is: 1,351.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.63 : 2,995.28 = 900.97 : x
  2. Step 2: Convert to fraction form
    1,996.63/2,995.28 = 900.97/x
  3. Step 3: Cross multiply
    1,996.63x = 2,995.28 × 900.97
  4. Step 4: Simplify right side
    1,996.63x = 2,698,657.42
  5. Step 5: Solve for x
    x = 2,698,657.42/1,996.63
  6. Step 6: Final answer
    x = 1,351.61

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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.