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Finding the Fourth Proportional to 7,571.02, 11,358.53 and 2,640.65

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Solution

The fourth proportional to 7,571.02, 11,358.53 and 2,640.65 is: 3,961.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,571.02 : 11,358.53 = 2,640.65 : x
  2. Step 2: Convert to fraction form
    7,571.02/11,358.53 = 2,640.65/x
  3. Step 3: Cross multiply
    7,571.02x = 11,358.53 × 2,640.65
  4. Step 4: Simplify right side
    7,571.02x = 29,993,906.04
  5. Step 5: Solve for x
    x = 29,993,906.04/7,571.02
  6. Step 6: Final answer
    x = 3,961.67

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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.