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Finding the Fourth Proportional to 7,176.26, 9,906.60 and 4,790.19

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Solution

The fourth proportional to 7,176.26, 9,906.60 and 4,790.19 is: 6,612.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.26 : 9,906.60 = 4,790.19 : x
  2. Step 2: Convert to fraction form
    7,176.26/9,906.60 = 4,790.19/x
  3. Step 3: Cross multiply
    7,176.26x = 9,906.60 × 4,790.19
  4. Step 4: Simplify right side
    7,176.26x = 47,454,496.25
  5. Step 5: Solve for x
    x = 47,454,496.25/7,176.26
  6. Step 6: Final answer
    x = 6,612.71

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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.