Home / 5,238.68-7,859.12-1,540.60

Finding the Fourth Proportional to 5,238.68, 7,859.12 and 1,540.60

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Solution

The fourth proportional to 5,238.68, 7,859.12 and 1,540.60 is: 2,311.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.68 : 7,859.12 = 1,540.60 : x
  2. Step 2: Convert to fraction form
    5,238.68/7,859.12 = 1,540.60/x
  3. Step 3: Cross multiply
    5,238.68x = 7,859.12 × 1,540.60
  4. Step 4: Simplify right side
    5,238.68x = 12,107,760.27
  5. Step 5: Solve for x
    x = 12,107,760.27/5,238.68
  6. Step 6: Final answer
    x = 2,311.22

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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.