Home / 3,181.06-4,769.97-2,142.64

Finding the Fourth Proportional to 3,181.06, 4,769.97 and 2,142.64

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Solution

The fourth proportional to 3,181.06, 4,769.97 and 2,142.64 is: 3,212.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.06 : 4,769.97 = 2,142.64 : x
  2. Step 2: Convert to fraction form
    3,181.06/4,769.97 = 2,142.64/x
  3. Step 3: Cross multiply
    3,181.06x = 4,769.97 × 2,142.64
  4. Step 4: Simplify right side
    3,181.06x = 10,220,328.52
  5. Step 5: Solve for x
    x = 10,220,328.52/3,181.06
  6. Step 6: Final answer
    x = 3,212.87

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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.