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Finding the Fourth Proportional to 5,247.45, 7,241.20 and 3,009.22

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Solution

The fourth proportional to 5,247.45, 7,241.20 and 3,009.22 is: 4,152.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.45 : 7,241.20 = 3,009.22 : x
  2. Step 2: Convert to fraction form
    5,247.45/7,241.20 = 3,009.22/x
  3. Step 3: Cross multiply
    5,247.45x = 7,241.20 × 3,009.22
  4. Step 4: Simplify right side
    5,247.45x = 21,790,363.86
  5. Step 5: Solve for x
    x = 21,790,363.86/5,247.45
  6. Step 6: Final answer
    x = 4,152.56

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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.