Home / 3,928.30-5,891.79-1,294.99

Finding the Fourth Proportional to 3,928.30, 5,891.79 and 1,294.99

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Solution

The fourth proportional to 3,928.30, 5,891.79 and 1,294.99 is: 1,942.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.30 : 5,891.79 = 1,294.99 : x
  2. Step 2: Convert to fraction form
    3,928.30/5,891.79 = 1,294.99/x
  3. Step 3: Cross multiply
    3,928.30x = 5,891.79 × 1,294.99
  4. Step 4: Simplify right side
    3,928.30x = 7,629,809.13
  5. Step 5: Solve for x
    x = 7,629,809.13/3,928.30
  6. Step 6: Final answer
    x = 1,942.27

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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.