Home / 3,105.93-4,661.24-1,645.41

Finding the Fourth Proportional to 3,105.93, 4,661.24 and 1,645.41

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Solution

The fourth proportional to 3,105.93, 4,661.24 and 1,645.41 is: 2,469.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.93 : 4,661.24 = 1,645.41 : x
  2. Step 2: Convert to fraction form
    3,105.93/4,661.24 = 1,645.41/x
  3. Step 3: Cross multiply
    3,105.93x = 4,661.24 × 1,645.41
  4. Step 4: Simplify right side
    3,105.93x = 7,669,642.68
  5. Step 5: Solve for x
    x = 7,669,642.68/3,105.93
  6. Step 6: Final answer
    x = 2,469.35

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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.