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Finding the Fourth Proportional to 4,008, 6,012 and 1,272

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Solution

The fourth proportional to 4,008, 6,012 and 1,272 is: 1,908

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,008 : 6,012 = 1,272 : x
  2. Step 2: Convert to fraction form
    4,008/6,012 = 1,272/x
  3. Step 3: Cross multiply
    4,008x = 6,012 × 1,272
  4. Step 4: Simplify right side
    4,008x = 7,647,264
  5. Step 5: Solve for x
    x = 7,647,264/4,008
  6. Step 6: Final answer
    x = 1,908

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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.