Home / 6,120.20-8,446.46-3,431.87

Finding the Fourth Proportional to 6,120.20, 8,446.46 and 3,431.87

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Solution

The fourth proportional to 6,120.20, 8,446.46 and 3,431.87 is: 4,736.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.20 : 8,446.46 = 3,431.87 : x
  2. Step 2: Convert to fraction form
    6,120.20/8,446.46 = 3,431.87/x
  3. Step 3: Cross multiply
    6,120.20x = 8,446.46 × 3,431.87
  4. Step 4: Simplify right side
    6,120.20x = 28,987,152.68
  5. Step 5: Solve for x
    x = 28,987,152.68/6,120.20
  6. Step 6: Final answer
    x = 4,736.31

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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.