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Finding the Fourth Proportional to 5,331.51, 8,002.02 and 5,311.67

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Solution

The fourth proportional to 5,331.51, 8,002.02 and 5,311.67 is: 7,972.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,331.51 : 8,002.02 = 5,311.67 : x
  2. Step 2: Convert to fraction form
    5,331.51/8,002.02 = 5,311.67/x
  3. Step 3: Cross multiply
    5,331.51x = 8,002.02 × 5,311.67
  4. Step 4: Simplify right side
    5,331.51x = 42,504,049.56
  5. Step 5: Solve for x
    x = 42,504,049.56/5,331.51
  6. Step 6: Final answer
    x = 7,972.23

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1.5x scale

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.