Home / 6,639.14-9,161.25-3,805.73

Finding the Fourth Proportional to 6,639.14, 9,161.25 and 3,805.73

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Solution

The fourth proportional to 6,639.14, 9,161.25 and 3,805.73 is: 5,251.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.14 : 9,161.25 = 3,805.73 : x
  2. Step 2: Convert to fraction form
    6,639.14/9,161.25 = 3,805.73/x
  3. Step 3: Cross multiply
    6,639.14x = 9,161.25 × 3,805.73
  4. Step 4: Simplify right side
    6,639.14x = 34,865,291.18
  5. Step 5: Solve for x
    x = 34,865,291.18/6,639.14
  6. Step 6: Final answer
    x = 5,251.48

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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.