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Finding the Fourth Proportional to 7,081.78, 10,608.09 and 4,153.03

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Solution

The fourth proportional to 7,081.78, 10,608.09 and 4,153.03 is: 6,220.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.78 : 10,608.09 = 4,153.03 : x
  2. Step 2: Convert to fraction form
    7,081.78/10,608.09 = 4,153.03/x
  3. Step 3: Cross multiply
    7,081.78x = 10,608.09 × 4,153.03
  4. Step 4: Simplify right side
    7,081.78x = 44,055,716.01
  5. Step 5: Solve for x
    x = 44,055,716.01/7,081.78
  6. Step 6: Final answer
    x = 6,220.99

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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.