Home / 3,911.28-5,867.00-1,719.56

Finding the Fourth Proportional to 3,911.28, 5,867.00 and 1,719.56

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Solution

The fourth proportional to 3,911.28, 5,867.00 and 1,719.56 is: 2,579.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.28 : 5,867.00 = 1,719.56 : x
  2. Step 2: Convert to fraction form
    3,911.28/5,867.00 = 1,719.56/x
  3. Step 3: Cross multiply
    3,911.28x = 5,867.00 × 1,719.56
  4. Step 4: Simplify right side
    3,911.28x = 10,088,620.59
  5. Step 5: Solve for x
    x = 10,088,620.59/3,911.28
  6. Step 6: Final answer
    x = 2,579.37

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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.