Home / 3,391.76-5,083.59-1,928.90

Finding the Fourth Proportional to 3,391.76, 5,083.59 and 1,928.90

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Solution

The fourth proportional to 3,391.76, 5,083.59 and 1,928.90 is: 2,891.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.76 : 5,083.59 = 1,928.90 : x
  2. Step 2: Convert to fraction form
    3,391.76/5,083.59 = 1,928.90/x
  3. Step 3: Cross multiply
    3,391.76x = 5,083.59 × 1,928.90
  4. Step 4: Simplify right side
    3,391.76x = 9,805,736.75
  5. Step 5: Solve for x
    x = 9,805,736.75/3,391.76
  6. Step 6: Final answer
    x = 2,891.05

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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.