Home / 7,207.68-10,812.10-2,211.14

Finding the Fourth Proportional to 7,207.68, 10,812.10 and 2,211.14

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Solution

The fourth proportional to 7,207.68, 10,812.10 and 2,211.14 is: 3,316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.68 : 10,812.10 = 2,211.14 : x
  2. Step 2: Convert to fraction form
    7,207.68/10,812.10 = 2,211.14/x
  3. Step 3: Cross multiply
    7,207.68x = 10,812.10 × 2,211.14
  4. Step 4: Simplify right side
    7,207.68x = 23,907,066.79
  5. Step 5: Solve for x
    x = 23,907,066.79/7,207.68
  6. Step 6: Final answer
    x = 3,316.89

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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.