Home / 3,163.05-4,366.35-1,984.80

Finding the Fourth Proportional to 3,163.05, 4,366.35 and 1,984.80

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Solution

The fourth proportional to 3,163.05, 4,366.35 and 1,984.80 is: 2,739.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.05 : 4,366.35 = 1,984.80 : x
  2. Step 2: Convert to fraction form
    3,163.05/4,366.35 = 1,984.80/x
  3. Step 3: Cross multiply
    3,163.05x = 4,366.35 × 1,984.80
  4. Step 4: Simplify right side
    3,163.05x = 8,666,331.48
  5. Step 5: Solve for x
    x = 8,666,331.48/3,163.05
  6. Step 6: Final answer
    x = 2,739.87

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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.