Home / 5,450.29-7,520.49-3,211.86

Finding the Fourth Proportional to 5,450.29, 7,520.49 and 3,211.86

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Solution

The fourth proportional to 5,450.29, 7,520.49 and 3,211.86 is: 4,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.29 : 7,520.49 = 3,211.86 : x
  2. Step 2: Convert to fraction form
    5,450.29/7,520.49 = 3,211.86/x
  3. Step 3: Cross multiply
    5,450.29x = 7,520.49 × 3,211.86
  4. Step 4: Simplify right side
    5,450.29x = 24,154,738.04
  5. Step 5: Solve for x
    x = 24,154,738.04/5,450.29
  6. Step 6: Final answer
    x = 4,431.83

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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.