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Finding the Fourth Proportional to 5,321.69, 7,344.07 and 2,931.73

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Solution

The fourth proportional to 5,321.69, 7,344.07 and 2,931.73 is: 4,045.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.69 : 7,344.07 = 2,931.73 : x
  2. Step 2: Convert to fraction form
    5,321.69/7,344.07 = 2,931.73/x
  3. Step 3: Cross multiply
    5,321.69x = 7,344.07 × 2,931.73
  4. Step 4: Simplify right side
    5,321.69x = 21,530,830.34
  5. Step 5: Solve for x
    x = 21,530,830.34/5,321.69
  6. Step 6: Final answer
    x = 4,045.86

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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.