Home / 3,928.72-5,891.64-1,295.73

Finding the Fourth Proportional to 3,928.72, 5,891.64 and 1,295.73

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Solution

The fourth proportional to 3,928.72, 5,891.64 and 1,295.73 is: 1,943.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.72 : 5,891.64 = 1,295.73 : x
  2. Step 2: Convert to fraction form
    3,928.72/5,891.64 = 1,295.73/x
  3. Step 3: Cross multiply
    3,928.72x = 5,891.64 × 1,295.73
  4. Step 4: Simplify right side
    3,928.72x = 7,633,991.06
  5. Step 5: Solve for x
    x = 7,633,991.06/3,928.72
  6. Step 6: Final answer
    x = 1,943.12

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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.