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Finding the Fourth Proportional to 7,170.24, 10,755.36 and 2,553.24

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Solution

The fourth proportional to 7,170.24, 10,755.36 and 2,553.24 is: 3,829.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.24 : 10,755.36 = 2,553.24 : x
  2. Step 2: Convert to fraction form
    7,170.24/10,755.36 = 2,553.24/x
  3. Step 3: Cross multiply
    7,170.24x = 10,755.36 × 2,553.24
  4. Step 4: Simplify right side
    7,170.24x = 27,461,015.37
  5. Step 5: Solve for x
    x = 27,461,015.37/7,170.24
  6. Step 6: Final answer
    x = 3,829.86

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.