Home / 3,163.43-4,365.89-1,904.55

Finding the Fourth Proportional to 3,163.43, 4,365.89 and 1,904.55

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Solution

The fourth proportional to 3,163.43, 4,365.89 and 1,904.55 is: 2,628.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.43 : 4,365.89 = 1,904.55 : x
  2. Step 2: Convert to fraction form
    3,163.43/4,365.89 = 1,904.55/x
  3. Step 3: Cross multiply
    3,163.43x = 4,365.89 × 1,904.55
  4. Step 4: Simplify right side
    3,163.43x = 8,315,037.05
  5. Step 5: Solve for x
    x = 8,315,037.05/3,163.43
  6. Step 6: Final answer
    x = 2,628.49

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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.