Home / 3,351.42-5,004.41-3,121.79

Finding the Fourth Proportional to 3,351.42, 5,004.41 and 3,121.79

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Solution

The fourth proportional to 3,351.42, 5,004.41 and 3,121.79 is: 4,661.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.42 : 5,004.41 = 3,121.79 : x
  2. Step 2: Convert to fraction form
    3,351.42/5,004.41 = 3,121.79/x
  3. Step 3: Cross multiply
    3,351.42x = 5,004.41 × 3,121.79
  4. Step 4: Simplify right side
    3,351.42x = 15,622,676.46
  5. Step 5: Solve for x
    x = 15,622,676.46/3,351.42
  6. Step 6: Final answer
    x = 4,661.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.