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Finding the Fourth Proportional to 5,329.22, 7,991.60 and 2,555.24

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Solution

The fourth proportional to 5,329.22, 7,991.60 and 2,555.24 is: 3,831.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.22 : 7,991.60 = 2,555.24 : x
  2. Step 2: Convert to fraction form
    5,329.22/7,991.60 = 2,555.24/x
  3. Step 3: Cross multiply
    5,329.22x = 7,991.60 × 2,555.24
  4. Step 4: Simplify right side
    5,329.22x = 20,420,403.25
  5. Step 5: Solve for x
    x = 20,420,403.25/5,329.22
  6. Step 6: Final answer
    x = 3,831.78

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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.