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Finding the Fourth Proportional to 5,379.50, 8,069.25 and 1,731.50

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Solution

The fourth proportional to 5,379.50, 8,069.25 and 1,731.50 is: 2,597.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.50 : 8,069.25 = 1,731.50 : x
  2. Step 2: Convert to fraction form
    5,379.50/8,069.25 = 1,731.50/x
  3. Step 3: Cross multiply
    5,379.50x = 8,069.25 × 1,731.50
  4. Step 4: Simplify right side
    5,379.50x = 13,971,906.38
  5. Step 5: Solve for x
    x = 13,971,906.38/5,379.50
  6. Step 6: Final answer
    x = 2,597.25

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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.