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Finding the Fourth Proportional to 1,952.12, 2,693.90 and 1,067.90

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Solution

The fourth proportional to 1,952.12, 2,693.90 and 1,067.90 is: 1,473.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,952.12 : 2,693.90 = 1,067.90 : x
  2. Step 2: Convert to fraction form
    1,952.12/2,693.90 = 1,067.90/x
  3. Step 3: Cross multiply
    1,952.12x = 2,693.90 × 1,067.90
  4. Step 4: Simplify right side
    1,952.12x = 2,876,815.81
  5. Step 5: Solve for x
    x = 2,876,815.81/1,952.12
  6. Step 6: Final answer
    x = 1,473.69

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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.