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Finding the Fourth Proportional to 1,951.90, 2,693.60 and 1,067.70

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Solution

The fourth proportional to 1,951.90, 2,693.60 and 1,067.70 is: 1,473.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.90 : 2,693.60 = 1,067.70 : x
  2. Step 2: Convert to fraction form
    1,951.90/2,693.60 = 1,067.70/x
  3. Step 3: Cross multiply
    1,951.90x = 2,693.60 × 1,067.70
  4. Step 4: Simplify right side
    1,951.90x = 2,875,956.34
  5. Step 5: Solve for x
    x = 2,875,956.34/1,951.90
  6. Step 6: Final answer
    x = 1,473.41

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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.