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Finding the Fourth Proportional to 6,812.69, 10,222.11 and 3,479.22

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Solution

The fourth proportional to 6,812.69, 10,222.11 and 3,479.22 is: 5,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,812.69 : 10,222.11 = 3,479.22 : x
  2. Step 2: Convert to fraction form
    6,812.69/10,222.11 = 3,479.22/x
  3. Step 3: Cross multiply
    6,812.69x = 10,222.11 × 3,479.22
  4. Step 4: Simplify right side
    6,812.69x = 35,564,969.55
  5. Step 5: Solve for x
    x = 35,564,969.55/6,812.69
  6. Step 6: Final answer
    x = 5,220.40

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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.