Home / 5,229.21-7,215.39-3,133.38

Finding the Fourth Proportional to 5,229.21, 7,215.39 and 3,133.38

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Solution

The fourth proportional to 5,229.21, 7,215.39 and 3,133.38 is: 4,323.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.21 : 7,215.39 = 3,133.38 : x
  2. Step 2: Convert to fraction form
    5,229.21/7,215.39 = 3,133.38/x
  3. Step 3: Cross multiply
    5,229.21x = 7,215.39 × 3,133.38
  4. Step 4: Simplify right side
    5,229.21x = 22,608,558.72
  5. Step 5: Solve for x
    x = 22,608,558.72/5,229.21
  6. Step 6: Final answer
    x = 4,323.51

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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.