Home / 6,805.05-9,390.69-3,972.57

Finding the Fourth Proportional to 6,805.05, 9,390.69 and 3,972.57

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Solution

The fourth proportional to 6,805.05, 9,390.69 and 3,972.57 is: 5,481.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,805.05 : 9,390.69 = 3,972.57 : x
  2. Step 2: Convert to fraction form
    6,805.05/9,390.69 = 3,972.57/x
  3. Step 3: Cross multiply
    6,805.05x = 9,390.69 × 3,972.57
  4. Step 4: Simplify right side
    6,805.05x = 37,305,173.37
  5. Step 5: Solve for x
    x = 37,305,173.37/6,805.05
  6. Step 6: Final answer
    x = 5,481.98

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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.