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Finding the Fourth Proportional to 5,245.08, 7,872.48 and 2,649.84

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Solution

The fourth proportional to 5,245.08, 7,872.48 and 2,649.84 is: 3,977.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.08 : 7,872.48 = 2,649.84 : x
  2. Step 2: Convert to fraction form
    5,245.08/7,872.48 = 2,649.84/x
  3. Step 3: Cross multiply
    5,245.08x = 7,872.48 × 2,649.84
  4. Step 4: Simplify right side
    5,245.08x = 20,860,812.40
  5. Step 5: Solve for x
    x = 20,860,812.40/5,245.08
  6. Step 6: Final answer
    x = 3,977.22

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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.