Home / 3,431.88-5,149.26-2,615.04

Finding the Fourth Proportional to 3,431.88, 5,149.26 and 2,615.04

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Solution

The fourth proportional to 3,431.88, 5,149.26 and 2,615.04 is: 3,923.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.88 : 5,149.26 = 2,615.04 : x
  2. Step 2: Convert to fraction form
    3,431.88/5,149.26 = 2,615.04/x
  3. Step 3: Cross multiply
    3,431.88x = 5,149.26 × 2,615.04
  4. Step 4: Simplify right side
    3,431.88x = 13,465,520.87
  5. Step 5: Solve for x
    x = 13,465,520.87/3,431.88
  6. Step 6: Final answer
    x = 3,923.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.