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Finding the Fourth Proportional to 2,067.45, 3,101.64 and 606.61

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Solution

The fourth proportional to 2,067.45, 3,101.64 and 606.61 is: 910.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,067.45 : 3,101.64 = 606.61 : x
  2. Step 2: Convert to fraction form
    2,067.45/3,101.64 = 606.61/x
  3. Step 3: Cross multiply
    2,067.45x = 3,101.64 × 606.61
  4. Step 4: Simplify right side
    2,067.45x = 1,881,485.84
  5. Step 5: Solve for x
    x = 1,881,485.84/2,067.45
  6. Step 6: Final answer
    x = 910.05

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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.