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Finding the Fourth Proportional to 2,067.76, 3,101.64 and 606.91

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Solution

The fourth proportional to 2,067.76, 3,101.64 and 606.91 is: 910.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,067.76 : 3,101.64 = 606.91 : x
  2. Step 2: Convert to fraction form
    2,067.76/3,101.64 = 606.91/x
  3. Step 3: Cross multiply
    2,067.76x = 3,101.64 × 606.91
  4. Step 4: Simplify right side
    2,067.76x = 1,882,413.30
  5. Step 5: Solve for x
    x = 1,882,413.30/2,067.76
  6. Step 6: Final answer
    x = 910.36

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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.