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Finding the Fourth Proportional to 4,627, 6,388.14 and 3,673.79

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Solution

The fourth proportional to 4,627, 6,388.14 and 3,673.79 is: 5,072.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,627 : 6,388.14 = 3,673.79 : x
  2. Step 2: Convert to fraction form
    4,627/6,388.14 = 3,673.79/x
  3. Step 3: Cross multiply
    4,627x = 6,388.14 × 3,673.79
  4. Step 4: Simplify right side
    4,627x = 23,468,684.85
  5. Step 5: Solve for x
    x = 23,468,684.85/4,627
  6. Step 6: Final answer
    x = 5,072.12

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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.