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Finding the Fourth Proportional to 7,612.26, 11,416.62 and 2,930.72

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Solution

The fourth proportional to 7,612.26, 11,416.62 and 2,930.72 is: 4,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,612.26 : 11,416.62 = 2,930.72 : x
  2. Step 2: Convert to fraction form
    7,612.26/11,416.62 = 2,930.72/x
  3. Step 3: Cross multiply
    7,612.26x = 11,416.62 × 2,930.72
  4. Step 4: Simplify right side
    7,612.26x = 33,458,916.57
  5. Step 5: Solve for x
    x = 33,458,916.57/7,612.26
  6. Step 6: Final answer
    x = 4,395.40

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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.