Home / 3,910.67-5,867.90-1,719.11

Finding the Fourth Proportional to 3,910.67, 5,867.90 and 1,719.11

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Solution

The fourth proportional to 3,910.67, 5,867.90 and 1,719.11 is: 2,579.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.67 : 5,867.90 = 1,719.11 : x
  2. Step 2: Convert to fraction form
    3,910.67/5,867.90 = 1,719.11/x
  3. Step 3: Cross multiply
    3,910.67x = 5,867.90 × 1,719.11
  4. Step 4: Simplify right side
    3,910.67x = 10,087,584.54
  5. Step 5: Solve for x
    x = 10,087,584.54/3,910.67
  6. Step 6: Final answer
    x = 2,579.50

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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.