Home / 3,928.14-5,891.85-1,330.92

Finding the Fourth Proportional to 3,928.14, 5,891.85 and 1,330.92

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Solution

The fourth proportional to 3,928.14, 5,891.85 and 1,330.92 is: 1,996.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.14 : 5,891.85 = 1,330.92 : x
  2. Step 2: Convert to fraction form
    3,928.14/5,891.85 = 1,330.92/x
  3. Step 3: Cross multiply
    3,928.14x = 5,891.85 × 1,330.92
  4. Step 4: Simplify right side
    3,928.14x = 7,841,581.00
  5. Step 5: Solve for x
    x = 7,841,581.00/3,928.14
  6. Step 6: Final answer
    x = 1,996.26

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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.