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Finding the Fourth Proportional to 5,310.46, 7,328.22 and 3,072.46

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Solution

The fourth proportional to 5,310.46, 7,328.22 and 3,072.46 is: 4,239.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.46 : 7,328.22 = 3,072.46 : x
  2. Step 2: Convert to fraction form
    5,310.46/7,328.22 = 3,072.46/x
  3. Step 3: Cross multiply
    5,310.46x = 7,328.22 × 3,072.46
  4. Step 4: Simplify right side
    5,310.46x = 22,515,662.82
  5. Step 5: Solve for x
    x = 22,515,662.82/5,310.46
  6. Step 6: Final answer
    x = 4,239.87

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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.