Home / 3,231.66-4,849.67-2,078.22

Finding the Fourth Proportional to 3,231.66, 4,849.67 and 2,078.22

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Solution

The fourth proportional to 3,231.66, 4,849.67 and 2,078.22 is: 3,118.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.66 : 4,849.67 = 2,078.22 : x
  2. Step 2: Convert to fraction form
    3,231.66/4,849.67 = 2,078.22/x
  3. Step 3: Cross multiply
    3,231.66x = 4,849.67 × 2,078.22
  4. Step 4: Simplify right side
    3,231.66x = 10,078,681.19
  5. Step 5: Solve for x
    x = 10,078,681.19/3,231.66
  6. Step 6: Final answer
    x = 3,118.73

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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.