Home / 3,724.19-5,141.79-2,309.38

Finding the Fourth Proportional to 3,724.19, 5,141.79 and 2,309.38

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Solution

The fourth proportional to 3,724.19, 5,141.79 and 2,309.38 is: 3,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.19 : 5,141.79 = 2,309.38 : x
  2. Step 2: Convert to fraction form
    3,724.19/5,141.79 = 2,309.38/x
  3. Step 3: Cross multiply
    3,724.19x = 5,141.79 × 2,309.38
  4. Step 4: Simplify right side
    3,724.19x = 11,874,346.99
  5. Step 5: Solve for x
    x = 11,874,346.99/3,724.19
  6. Step 6: Final answer
    x = 3,188.44

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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.