Home / 3,189.19-4,399.86-2,351.89

Finding the Fourth Proportional to 3,189.19, 4,399.86 and 2,351.89

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Solution

The fourth proportional to 3,189.19, 4,399.86 and 2,351.89 is: 3,244.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.19 : 4,399.86 = 2,351.89 : x
  2. Step 2: Convert to fraction form
    3,189.19/4,399.86 = 2,351.89/x
  3. Step 3: Cross multiply
    3,189.19x = 4,399.86 × 2,351.89
  4. Step 4: Simplify right side
    3,189.19x = 10,347,986.74
  5. Step 5: Solve for x
    x = 10,347,986.74/3,189.19
  6. Step 6: Final answer
    x = 3,244.71

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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.