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Finding the Fourth Proportional to 7,236.88, 9,985.34 and 4,251.62

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Solution

The fourth proportional to 7,236.88, 9,985.34 and 4,251.62 is: 5,866.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,236.88 : 9,985.34 = 4,251.62 : x
  2. Step 2: Convert to fraction form
    7,236.88/9,985.34 = 4,251.62/x
  3. Step 3: Cross multiply
    7,236.88x = 9,985.34 × 4,251.62
  4. Step 4: Simplify right side
    7,236.88x = 42,453,906.84
  5. Step 5: Solve for x
    x = 42,453,906.84/7,236.88
  6. Step 6: Final answer
    x = 5,866.33

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