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Finding the Fourth Proportional to 6,505.80, 9,755.10 and 2,605.80

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Solution

The fourth proportional to 6,505.80, 9,755.10 and 2,605.80 is: 3,907.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,505.80 : 9,755.10 = 2,605.80 : x
  2. Step 2: Convert to fraction form
    6,505.80/9,755.10 = 2,605.80/x
  3. Step 3: Cross multiply
    6,505.80x = 9,755.10 × 2,605.80
  4. Step 4: Simplify right side
    6,505.80x = 25,419,839.58
  5. Step 5: Solve for x
    x = 25,419,839.58/6,505.80
  6. Step 6: Final answer
    x = 3,907.26

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1.5x scale

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.