Home / 5,211.72-7,190.62-3,222.92

Finding the Fourth Proportional to 5,211.72, 7,190.62 and 3,222.92

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Solution

The fourth proportional to 5,211.72, 7,190.62 and 3,222.92 is: 4,446.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.72 : 7,190.62 = 3,222.92 : x
  2. Step 2: Convert to fraction form
    5,211.72/7,190.62 = 3,222.92/x
  3. Step 3: Cross multiply
    5,211.72x = 7,190.62 × 3,222.92
  4. Step 4: Simplify right side
    5,211.72x = 23,174,785.50
  5. Step 5: Solve for x
    x = 23,174,785.50/5,211.72
  6. Step 6: Final answer
    x = 4,446.66

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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.