Home / 3,161.34-4,760.85-2,755.53

Finding the Fourth Proportional to 3,161.34, 4,760.85 and 2,755.53

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Solution

The fourth proportional to 3,161.34, 4,760.85 and 2,755.53 is: 4,149.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.34 : 4,760.85 = 2,755.53 : x
  2. Step 2: Convert to fraction form
    3,161.34/4,760.85 = 2,755.53/x
  3. Step 3: Cross multiply
    3,161.34x = 4,760.85 × 2,755.53
  4. Step 4: Simplify right side
    3,161.34x = 13,118,675.33
  5. Step 5: Solve for x
    x = 13,118,675.33/3,161.34
  6. Step 6: Final answer
    x = 4,149.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.