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Finding the Fourth Proportional to 3,616.56, 4,992 and 2,125.08

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Solution

The fourth proportional to 3,616.56, 4,992 and 2,125.08 is: 2,933.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.56 : 4,992 = 2,125.08 : x
  2. Step 2: Convert to fraction form
    3,616.56/4,992 = 2,125.08/x
  3. Step 3: Cross multiply
    3,616.56x = 4,992 × 2,125.08
  4. Step 4: Simplify right side
    3,616.56x = 10,608,399.36
  5. Step 5: Solve for x
    x = 10,608,399.36/3,616.56
  6. Step 6: Final answer
    x = 2,933.28

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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.