Home / 7,229.48-10,839.34-3,715.09

Finding the Fourth Proportional to 7,229.48, 10,839.34 and 3,715.09

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Solution

The fourth proportional to 7,229.48, 10,839.34 and 3,715.09 is: 5,570.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,229.48 : 10,839.34 = 3,715.09 : x
  2. Step 2: Convert to fraction form
    7,229.48/10,839.34 = 3,715.09/x
  3. Step 3: Cross multiply
    7,229.48x = 10,839.34 × 3,715.09
  4. Step 4: Simplify right side
    7,229.48x = 40,269,087.25
  5. Step 5: Solve for x
    x = 40,269,087.25/7,229.48
  6. Step 6: Final answer
    x = 5,570.13

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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.