Home / 3,185.28-4,394.36-2,299.12

Finding the Fourth Proportional to 3,185.28, 4,394.36 and 2,299.12

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Solution

The fourth proportional to 3,185.28, 4,394.36 and 2,299.12 is: 3,171.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.28 : 4,394.36 = 2,299.12 : x
  2. Step 2: Convert to fraction form
    3,185.28/4,394.36 = 2,299.12/x
  3. Step 3: Cross multiply
    3,185.28x = 4,394.36 × 2,299.12
  4. Step 4: Simplify right side
    3,185.28x = 10,103,160.96
  5. Step 5: Solve for x
    x = 10,103,160.96/3,185.28
  6. Step 6: Final answer
    x = 3,171.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.