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Finding the Fourth Proportional to 1,996.23, 3,005.94 and 1,479.90

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Solution

The fourth proportional to 1,996.23, 3,005.94 and 1,479.90 is: 2,228.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.23 : 3,005.94 = 1,479.90 : x
  2. Step 2: Convert to fraction form
    1,996.23/3,005.94 = 1,479.90/x
  3. Step 3: Cross multiply
    1,996.23x = 3,005.94 × 1,479.90
  4. Step 4: Simplify right side
    1,996.23x = 4,448,490.61
  5. Step 5: Solve for x
    x = 4,448,490.61/1,996.23
  6. Step 6: Final answer
    x = 2,228.45

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.