Home / 2,823.70-4,231.43-2,667.90

Finding the Fourth Proportional to 2,823.70, 4,231.43 and 2,667.90

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Solution

The fourth proportional to 2,823.70, 4,231.43 and 2,667.90 is: 3,997.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,823.70 : 4,231.43 = 2,667.90 : x
  2. Step 2: Convert to fraction form
    2,823.70/4,231.43 = 2,667.90/x
  3. Step 3: Cross multiply
    2,823.70x = 4,231.43 × 2,667.90
  4. Step 4: Simplify right side
    2,823.70x = 11,289,032.10
  5. Step 5: Solve for x
    x = 11,289,032.10/2,823.70
  6. Step 6: Final answer
    x = 3,997.96

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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.