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Finding the Fourth Proportional to 7,069.68, 10,608.17 and 2,912.76

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Solution

The fourth proportional to 7,069.68, 10,608.17 and 2,912.76 is: 4,370.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,069.68 : 10,608.17 = 2,912.76 : x
  2. Step 2: Convert to fraction form
    7,069.68/10,608.17 = 2,912.76/x
  3. Step 3: Cross multiply
    7,069.68x = 10,608.17 × 2,912.76
  4. Step 4: Simplify right side
    7,069.68x = 30,899,038.69
  5. Step 5: Solve for x
    x = 30,899,038.69/7,069.68
  6. Step 6: Final answer
    x = 4,370.64

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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.