Home / 3,147-4,721.18-1,067.06

Finding the Fourth Proportional to 3,147, 4,721.18 and 1,067.06

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Solution

The fourth proportional to 3,147, 4,721.18 and 1,067.06 is: 1,600.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147 : 4,721.18 = 1,067.06 : x
  2. Step 2: Convert to fraction form
    3,147/4,721.18 = 1,067.06/x
  3. Step 3: Cross multiply
    3,147x = 4,721.18 × 1,067.06
  4. Step 4: Simplify right side
    3,147x = 5,037,753.39
  5. Step 5: Solve for x
    x = 5,037,753.39/3,147
  6. Step 6: Final answer
    x = 1,600.81

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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.