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Finding the Fourth Proportional to 6,792, 10,192.32 and 2,688

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Solution

The fourth proportional to 6,792, 10,192.32 and 2,688 is: 4,033.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,792 : 10,192.32 = 2,688 : x
  2. Step 2: Convert to fraction form
    6,792/10,192.32 = 2,688/x
  3. Step 3: Cross multiply
    6,792x = 10,192.32 × 2,688
  4. Step 4: Simplify right side
    6,792x = 27,396,956.16
  5. Step 5: Solve for x
    x = 27,396,956.16/6,792
  6. Step 6: Final answer
    x = 4,033.71

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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.