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Finding the Fourth Proportional to 5,310.89, 7,965.29 and 5,047.47

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Solution

The fourth proportional to 5,310.89, 7,965.29 and 5,047.47 is: 7,570.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.89 : 7,965.29 = 5,047.47 : x
  2. Step 2: Convert to fraction form
    5,310.89/7,965.29 = 5,047.47/x
  3. Step 3: Cross multiply
    5,310.89x = 7,965.29 × 5,047.47
  4. Step 4: Simplify right side
    5,310.89x = 40,204,537.08
  5. Step 5: Solve for x
    x = 40,204,537.08/5,310.89
  6. Step 6: Final answer
    x = 7,570.21

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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.