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Finding the Fourth Proportional to 6,125.78, 8,453.62 and 3,608

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Solution

The fourth proportional to 6,125.78, 8,453.62 and 3,608 is: 4,979.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,125.78 : 8,453.62 = 3,608 : x
  2. Step 2: Convert to fraction form
    6,125.78/8,453.62 = 3,608/x
  3. Step 3: Cross multiply
    6,125.78x = 8,453.62 × 3,608
  4. Step 4: Simplify right side
    6,125.78x = 30,500,660.96
  5. Step 5: Solve for x
    x = 30,500,660.96/6,125.78
  6. Step 6: Final answer
    x = 4,979.07

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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.