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Finding the Fourth Proportional to 3,067.43, 4,601.88 and 987.63

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Solution

The fourth proportional to 3,067.43, 4,601.88 and 987.63 is: 1,481.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,067.43 : 4,601.88 = 987.63 : x
  2. Step 2: Convert to fraction form
    3,067.43/4,601.88 = 987.63/x
  3. Step 3: Cross multiply
    3,067.43x = 4,601.88 × 987.63
  4. Step 4: Simplify right side
    3,067.43x = 4,544,954.74
  5. Step 5: Solve for x
    x = 4,544,954.74/3,067.43
  6. Step 6: Final answer
    x = 1,481.68

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1.5x scale

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.