Home / 3,108.74-4,662.12-1,028.36

Finding the Fourth Proportional to 3,108.74, 4,662.12 and 1,028.36

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Solution

The fourth proportional to 3,108.74, 4,662.12 and 1,028.36 is: 1,542.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.74 : 4,662.12 = 1,028.36 : x
  2. Step 2: Convert to fraction form
    3,108.74/4,662.12 = 1,028.36/x
  3. Step 3: Cross multiply
    3,108.74x = 4,662.12 × 1,028.36
  4. Step 4: Simplify right side
    3,108.74x = 4,794,314.41
  5. Step 5: Solve for x
    x = 4,794,314.41/3,108.74
  6. Step 6: Final answer
    x = 1,542.21

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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.