Home / 4,138.20-6,207.30-2,388.60

Finding the Fourth Proportional to 4,138.20, 6,207.30 and 2,388.60

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Solution

The fourth proportional to 4,138.20, 6,207.30 and 2,388.60 is: 3,582.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.20 : 6,207.30 = 2,388.60 : x
  2. Step 2: Convert to fraction form
    4,138.20/6,207.30 = 2,388.60/x
  3. Step 3: Cross multiply
    4,138.20x = 6,207.30 × 2,388.60
  4. Step 4: Simplify right side
    4,138.20x = 14,826,756.78
  5. Step 5: Solve for x
    x = 14,826,756.78/4,138.20
  6. Step 6: Final answer
    x = 3,582.90

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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.