Home / 4,102.20-6,154.27-1,328.86

Finding the Fourth Proportional to 4,102.20, 6,154.27 and 1,328.86

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Solution

The fourth proportional to 4,102.20, 6,154.27 and 1,328.86 is: 1,993.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,102.20 : 6,154.27 = 1,328.86 : x
  2. Step 2: Convert to fraction form
    4,102.20/6,154.27 = 1,328.86/x
  3. Step 3: Cross multiply
    4,102.20x = 6,154.27 × 1,328.86
  4. Step 4: Simplify right side
    4,102.20x = 8,178,171.97
  5. Step 5: Solve for x
    x = 8,178,171.97/4,102.20
  6. Step 6: Final answer
    x = 1,993.61

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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.