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Finding the Fourth Proportional to 5,208, 7,187.16 and 2,850.28

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Solution

The fourth proportional to 5,208, 7,187.16 and 2,850.28 is: 3,933.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208 : 7,187.16 = 2,850.28 : x
  2. Step 2: Convert to fraction form
    5,208/7,187.16 = 2,850.28/x
  3. Step 3: Cross multiply
    5,208x = 7,187.16 × 2,850.28
  4. Step 4: Simplify right side
    5,208x = 20,485,418.40
  5. Step 5: Solve for x
    x = 20,485,418.40/5,208
  6. Step 6: Final answer
    x = 3,933.45

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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.