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Finding the Fourth Proportional to 6,601.40, 9,109.90 and 3,617.42

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Solution

The fourth proportional to 6,601.40, 9,109.90 and 3,617.42 is: 4,992.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,601.40 : 9,109.90 = 3,617.42 : x
  2. Step 2: Convert to fraction form
    6,601.40/9,109.90 = 3,617.42/x
  3. Step 3: Cross multiply
    6,601.40x = 9,109.90 × 3,617.42
  4. Step 4: Simplify right side
    6,601.40x = 32,954,334.46
  5. Step 5: Solve for x
    x = 32,954,334.46/6,601.40
  6. Step 6: Final answer
    x = 4,992.02

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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.