Home / 3,490.27-4,815.37-2,163.49

Finding the Fourth Proportional to 3,490.27, 4,815.37 and 2,163.49

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Solution

The fourth proportional to 3,490.27, 4,815.37 and 2,163.49 is: 2,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.27 : 4,815.37 = 2,163.49 : x
  2. Step 2: Convert to fraction form
    3,490.27/4,815.37 = 2,163.49/x
  3. Step 3: Cross multiply
    3,490.27x = 4,815.37 × 2,163.49
  4. Step 4: Simplify right side
    3,490.27x = 10,418,004.84
  5. Step 5: Solve for x
    x = 10,418,004.84/3,490.27
  6. Step 6: Final answer
    x = 2,984.87

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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.