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Finding the Fourth Proportional to 7,310.67, 10,961.90 and 2,379.90

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Solution

The fourth proportional to 7,310.67, 10,961.90 and 2,379.90 is: 3,568.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,310.67 : 10,961.90 = 2,379.90 : x
  2. Step 2: Convert to fraction form
    7,310.67/10,961.90 = 2,379.90/x
  3. Step 3: Cross multiply
    7,310.67x = 10,961.90 × 2,379.90
  4. Step 4: Simplify right side
    7,310.67x = 26,088,225.81
  5. Step 5: Solve for x
    x = 26,088,225.81/7,310.67
  6. Step 6: Final answer
    x = 3,568.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.