Home / 6,899-9,520.62-3,755.21

Finding the Fourth Proportional to 6,899, 9,520.62 and 3,755.21

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Solution

The fourth proportional to 6,899, 9,520.62 and 3,755.21 is: 5,182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899 : 9,520.62 = 3,755.21 : x
  2. Step 2: Convert to fraction form
    6,899/9,520.62 = 3,755.21/x
  3. Step 3: Cross multiply
    6,899x = 9,520.62 × 3,755.21
  4. Step 4: Simplify right side
    6,899x = 35,751,927.43
  5. Step 5: Solve for x
    x = 35,751,927.43/6,899
  6. Step 6: Final answer
    x = 5,182.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.