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Finding the Fourth Proportional to 2,568, 3,543.84 and 1,908

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Solution

The fourth proportional to 2,568, 3,543.84 and 1,908 is: 2,633.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,568 : 3,543.84 = 1,908 : x
  2. Step 2: Convert to fraction form
    2,568/3,543.84 = 1,908/x
  3. Step 3: Cross multiply
    2,568x = 3,543.84 × 1,908
  4. Step 4: Simplify right side
    2,568x = 6,761,646.72
  5. Step 5: Solve for x
    x = 6,761,646.72/2,568
  6. Step 6: Final answer
    x = 2,633.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.