Home / 6,872.03-9,481.82-3,887.21

Finding the Fourth Proportional to 6,872.03, 9,481.82 and 3,887.21

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Solution

The fourth proportional to 6,872.03, 9,481.82 and 3,887.21 is: 5,363.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.03 : 9,481.82 = 3,887.21 : x
  2. Step 2: Convert to fraction form
    6,872.03/9,481.82 = 3,887.21/x
  3. Step 3: Cross multiply
    6,872.03x = 9,481.82 × 3,887.21
  4. Step 4: Simplify right side
    6,872.03x = 36,857,825.52
  5. Step 5: Solve for x
    x = 36,857,825.52/6,872.03
  6. Step 6: Final answer
    x = 5,363.46

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1.5x scale

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.