Home / 3,163.71-4,366.26-1,985.16

Finding the Fourth Proportional to 3,163.71, 4,366.26 and 1,985.16

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Solution

The fourth proportional to 3,163.71, 4,366.26 and 1,985.16 is: 2,739.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.71 : 4,366.26 = 1,985.16 : x
  2. Step 2: Convert to fraction form
    3,163.71/4,366.26 = 1,985.16/x
  3. Step 3: Cross multiply
    3,163.71x = 4,366.26 × 1,985.16
  4. Step 4: Simplify right side
    3,163.71x = 8,667,724.70
  5. Step 5: Solve for x
    x = 8,667,724.70/3,163.71
  6. Step 6: Final answer
    x = 2,739.73

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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.