Home / 4,163.80-6,245.70-4,120.60

Finding the Fourth Proportional to 4,163.80, 6,245.70 and 4,120.60

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Solution

The fourth proportional to 4,163.80, 6,245.70 and 4,120.60 is: 6,180.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,163.80 : 6,245.70 = 4,120.60 : x
  2. Step 2: Convert to fraction form
    4,163.80/6,245.70 = 4,120.60/x
  3. Step 3: Cross multiply
    4,163.80x = 6,245.70 × 4,120.60
  4. Step 4: Simplify right side
    4,163.80x = 25,736,031.42
  5. Step 5: Solve for x
    x = 25,736,031.42/4,163.80
  6. Step 6: Final answer
    x = 6,180.90

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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.