Home / 6,081.18-9,120.20-4,105.79

Finding the Fourth Proportional to 6,081.18, 9,120.20 and 4,105.79

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Solution

The fourth proportional to 6,081.18, 9,120.20 and 4,105.79 is: 6,157.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,081.18 : 9,120.20 = 4,105.79 : x
  2. Step 2: Convert to fraction form
    6,081.18/9,120.20 = 4,105.79/x
  3. Step 3: Cross multiply
    6,081.18x = 9,120.20 × 4,105.79
  4. Step 4: Simplify right side
    6,081.18x = 37,445,594.03
  5. Step 5: Solve for x
    x = 37,445,594.03/6,081.18
  6. Step 6: Final answer
    x = 6,157.62

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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.