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Finding the Fourth Proportional to 4,907.60, 7,372.20 and 3,449.60

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Solution

The fourth proportional to 4,907.60, 7,372.20 and 3,449.60 is: 5,181.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,907.60 : 7,372.20 = 3,449.60 : x
  2. Step 2: Convert to fraction form
    4,907.60/7,372.20 = 3,449.60/x
  3. Step 3: Cross multiply
    4,907.60x = 7,372.20 × 3,449.60
  4. Step 4: Simplify right side
    4,907.60x = 25,431,141.12
  5. Step 5: Solve for x
    x = 25,431,141.12/4,907.60
  6. Step 6: Final answer
    x = 5,181.99

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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.