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Finding the Fourth Proportional to 5,010.88, 6,912 and 3,688

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Solution

The fourth proportional to 5,010.88, 6,912 and 3,688 is: 5,087.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,010.88 : 6,912 = 3,688 : x
  2. Step 2: Convert to fraction form
    5,010.88/6,912 = 3,688/x
  3. Step 3: Cross multiply
    5,010.88x = 6,912 × 3,688
  4. Step 4: Simplify right side
    5,010.88x = 25,491,456
  5. Step 5: Solve for x
    x = 25,491,456/5,010.88
  6. Step 6: Final answer
    x = 5,087.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.