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Finding the Fourth Proportional to 7,287.73, 10,908.09 and 3,772.90

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Solution

The fourth proportional to 7,287.73, 10,908.09 and 3,772.90 is: 5,647.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.73 : 10,908.09 = 3,772.90 : x
  2. Step 2: Convert to fraction form
    7,287.73/10,908.09 = 3,772.90/x
  3. Step 3: Cross multiply
    7,287.73x = 10,908.09 × 3,772.90
  4. Step 4: Simplify right side
    7,287.73x = 41,155,132.76
  5. Step 5: Solve for x
    x = 41,155,132.76/7,287.73
  6. Step 6: Final answer
    x = 5,647.18

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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.