Home / 5,138.20-7,695.42-3,184.48

Finding the Fourth Proportional to 5,138.20, 7,695.42 and 3,184.48

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Solution

The fourth proportional to 5,138.20, 7,695.42 and 3,184.48 is: 4,769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.20 : 7,695.42 = 3,184.48 : x
  2. Step 2: Convert to fraction form
    5,138.20/7,695.42 = 3,184.48/x
  3. Step 3: Cross multiply
    5,138.20x = 7,695.42 × 3,184.48
  4. Step 4: Simplify right side
    5,138.20x = 24,505,911.08
  5. Step 5: Solve for x
    x = 24,505,911.08/5,138.20
  6. Step 6: Final answer
    x = 4,769.36

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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.