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Finding the Fourth Proportional to 7,650.46, 11,472.23 and 2,720.23

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Solution

The fourth proportional to 7,650.46, 11,472.23 and 2,720.23 is: 4,079.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,650.46 : 11,472.23 = 2,720.23 : x
  2. Step 2: Convert to fraction form
    7,650.46/11,472.23 = 2,720.23/x
  3. Step 3: Cross multiply
    7,650.46x = 11,472.23 × 2,720.23
  4. Step 4: Simplify right side
    7,650.46x = 31,207,097.41
  5. Step 5: Solve for x
    x = 31,207,097.41/7,650.46
  6. Step 6: Final answer
    x = 4,079.11

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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.