Home / 3,719.75-5,133.25-2,147.84

Finding the Fourth Proportional to 3,719.75, 5,133.25 and 2,147.84

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Solution

The fourth proportional to 3,719.75, 5,133.25 and 2,147.84 is: 2,964.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.75 : 5,133.25 = 2,147.84 : x
  2. Step 2: Convert to fraction form
    3,719.75/5,133.25 = 2,147.84/x
  3. Step 3: Cross multiply
    3,719.75x = 5,133.25 × 2,147.84
  4. Step 4: Simplify right side
    3,719.75x = 11,025,383.87
  5. Step 5: Solve for x
    x = 11,025,383.87/3,719.75
  6. Step 6: Final answer
    x = 2,964.02

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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.