Home / 3,756.85-5,183.86-2,163.56

Finding the Fourth Proportional to 3,756.85, 5,183.86 and 2,163.56

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Solution

The fourth proportional to 3,756.85, 5,183.86 and 2,163.56 is: 2,985.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.85 : 5,183.86 = 2,163.56 : x
  2. Step 2: Convert to fraction form
    3,756.85/5,183.86 = 2,163.56/x
  3. Step 3: Cross multiply
    3,756.85x = 5,183.86 × 2,163.56
  4. Step 4: Simplify right side
    3,756.85x = 11,215,599.30
  5. Step 5: Solve for x
    x = 11,215,599.30/3,756.85
  6. Step 6: Final answer
    x = 2,985.38

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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.