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Finding the Fourth Proportional to 7,250.72, 10,858.28 and 3,540.99

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Solution

The fourth proportional to 7,250.72, 10,858.28 and 3,540.99 is: 5,302.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,250.72 : 10,858.28 = 3,540.99 : x
  2. Step 2: Convert to fraction form
    7,250.72/10,858.28 = 3,540.99/x
  3. Step 3: Cross multiply
    7,250.72x = 10,858.28 × 3,540.99
  4. Step 4: Simplify right side
    7,250.72x = 38,449,043.19
  5. Step 5: Solve for x
    x = 38,449,043.19/7,250.72
  6. Step 6: Final answer
    x = 5,302.79

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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.