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Finding the Fourth Proportional to 3,441.60, 5,167.80 and 2,620.80

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Solution

The fourth proportional to 3,441.60, 5,167.80 and 2,620.80 is: 3,935.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,441.60 : 5,167.80 = 2,620.80 : x
  2. Step 2: Convert to fraction form
    3,441.60/5,167.80 = 2,620.80/x
  3. Step 3: Cross multiply
    3,441.60x = 5,167.80 × 2,620.80
  4. Step 4: Simplify right side
    3,441.60x = 13,543,770.24
  5. Step 5: Solve for x
    x = 13,543,770.24/3,441.60
  6. Step 6: Final answer
    x = 3,935.31

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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.