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Finding the Fourth Proportional to 7,272.17, 10,912.17 and 2,889.67

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Solution

The fourth proportional to 7,272.17, 10,912.17 and 2,889.67 is: 4,336.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.17 : 10,912.17 = 2,889.67 : x
  2. Step 2: Convert to fraction form
    7,272.17/10,912.17 = 2,889.67/x
  3. Step 3: Cross multiply
    7,272.17x = 10,912.17 × 2,889.67
  4. Step 4: Simplify right side
    7,272.17x = 31,532,515.72
  5. Step 5: Solve for x
    x = 31,532,515.72/7,272.17
  6. Step 6: Final answer
    x = 4,336.05

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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.