Home / 7,121.26-10,680.14-3,224.89

Finding the Fourth Proportional to 7,121.26, 10,680.14 and 3,224.89

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Solution

The fourth proportional to 7,121.26, 10,680.14 and 3,224.89 is: 4,836.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.26 : 10,680.14 = 3,224.89 : x
  2. Step 2: Convert to fraction form
    7,121.26/10,680.14 = 3,224.89/x
  3. Step 3: Cross multiply
    7,121.26x = 10,680.14 × 3,224.89
  4. Step 4: Simplify right side
    7,121.26x = 34,442,260.56
  5. Step 5: Solve for x
    x = 34,442,260.56/7,121.26
  6. Step 6: Final answer
    x = 4,836.54

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Double scale
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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.