Home / 3,930.73-5,896.16-3,147.10

Finding the Fourth Proportional to 3,930.73, 5,896.16 and 3,147.10

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Solution

The fourth proportional to 3,930.73, 5,896.16 and 3,147.10 is: 4,720.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.73 : 5,896.16 = 3,147.10 : x
  2. Step 2: Convert to fraction form
    3,930.73/5,896.16 = 3,147.10/x
  3. Step 3: Cross multiply
    3,930.73x = 5,896.16 × 3,147.10
  4. Step 4: Simplify right side
    3,930.73x = 18,555,805.14
  5. Step 5: Solve for x
    x = 18,555,805.14/3,930.73
  6. Step 6: Final answer
    x = 4,720.70

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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.