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Finding the Fourth Proportional to 7,571.00, 11,356.55 and 2,640.62

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Solution

The fourth proportional to 7,571.00, 11,356.55 and 2,640.62 is: 3,960.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,571.00 : 11,356.55 = 2,640.62 : x
  2. Step 2: Convert to fraction form
    7,571.00/11,356.55 = 2,640.62/x
  3. Step 3: Cross multiply
    7,571.00x = 11,356.55 × 2,640.62
  4. Step 4: Simplify right side
    7,571.00x = 29,988,368.05
  5. Step 5: Solve for x
    x = 29,988,368.05/7,571.00
  6. Step 6: Final answer
    x = 3,960.95

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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.