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Finding the Fourth Proportional to 7,074.54, 9,763.17 and 3,930.73

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Solution

The fourth proportional to 7,074.54, 9,763.17 and 3,930.73 is: 5,424.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.54 : 9,763.17 = 3,930.73 : x
  2. Step 2: Convert to fraction form
    7,074.54/9,763.17 = 3,930.73/x
  3. Step 3: Cross multiply
    7,074.54x = 9,763.17 × 3,930.73
  4. Step 4: Simplify right side
    7,074.54x = 38,376,336.40
  5. Step 5: Solve for x
    x = 38,376,336.40/7,074.54
  6. Step 6: Final answer
    x = 5,424.57

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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.