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Finding the Fourth Proportional to 5,355.28, 7,390.24 and 2,997.44

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Solution

The fourth proportional to 5,355.28, 7,390.24 and 2,997.44 is: 4,136.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.28 : 7,390.24 = 2,997.44 : x
  2. Step 2: Convert to fraction form
    5,355.28/7,390.24 = 2,997.44/x
  3. Step 3: Cross multiply
    5,355.28x = 7,390.24 × 2,997.44
  4. Step 4: Simplify right side
    5,355.28x = 22,151,786.00
  5. Step 5: Solve for x
    x = 22,151,786.00/5,355.28
  6. Step 6: Final answer
    x = 4,136.44

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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.