Home / 3,426.54-5,138.64-1,234.86

Finding the Fourth Proportional to 3,426.54, 5,138.64 and 1,234.86

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Solution

The fourth proportional to 3,426.54, 5,138.64 and 1,234.86 is: 1,851.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.54 : 5,138.64 = 1,234.86 : x
  2. Step 2: Convert to fraction form
    3,426.54/5,138.64 = 1,234.86/x
  3. Step 3: Cross multiply
    3,426.54x = 5,138.64 × 1,234.86
  4. Step 4: Simplify right side
    3,426.54x = 6,345,500.99
  5. Step 5: Solve for x
    x = 6,345,500.99/3,426.54
  6. Step 6: Final answer
    x = 1,851.87

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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.