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Finding the Fourth Proportional to 7,272.08, 10,035.56 and 3,960.08

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Solution

The fourth proportional to 7,272.08, 10,035.56 and 3,960.08 is: 5,464.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.08 : 10,035.56 = 3,960.08 : x
  2. Step 2: Convert to fraction form
    7,272.08/10,035.56 = 3,960.08/x
  3. Step 3: Cross multiply
    7,272.08x = 10,035.56 × 3,960.08
  4. Step 4: Simplify right side
    7,272.08x = 39,741,620.44
  5. Step 5: Solve for x
    x = 39,741,620.44/7,272.08
  6. Step 6: Final answer
    x = 5,464.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.