Home / 3,211.26-4,433.61-2,874.57

Finding the Fourth Proportional to 3,211.26, 4,433.61 and 2,874.57

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Solution

The fourth proportional to 3,211.26, 4,433.61 and 2,874.57 is: 3,968.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.26 : 4,433.61 = 2,874.57 : x
  2. Step 2: Convert to fraction form
    3,211.26/4,433.61 = 2,874.57/x
  3. Step 3: Cross multiply
    3,211.26x = 4,433.61 × 2,874.57
  4. Step 4: Simplify right side
    3,211.26x = 12,744,722.30
  5. Step 5: Solve for x
    x = 12,744,722.30/3,211.26
  6. Step 6: Final answer
    x = 3,968.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.