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Finding the Fourth Proportional to 6,889.49, 9,507.45 and 3,745.70

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Solution

The fourth proportional to 6,889.49, 9,507.45 and 3,745.70 is: 5,169.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889.49 : 9,507.45 = 3,745.70 : x
  2. Step 2: Convert to fraction form
    6,889.49/9,507.45 = 3,745.70/x
  3. Step 3: Cross multiply
    6,889.49x = 9,507.45 × 3,745.70
  4. Step 4: Simplify right side
    6,889.49x = 35,611,989.20
  5. Step 5: Solve for x
    x = 35,611,989.20/6,889.49
  6. Step 6: Final answer
    x = 5,169.04

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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.