Home / 4,311.06-6,468.96-2,119.80

Finding the Fourth Proportional to 4,311.06, 6,468.96 and 2,119.80

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Solution

The fourth proportional to 4,311.06, 6,468.96 and 2,119.80 is: 3,180.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.06 : 6,468.96 = 2,119.80 : x
  2. Step 2: Convert to fraction form
    4,311.06/6,468.96 = 2,119.80/x
  3. Step 3: Cross multiply
    4,311.06x = 6,468.96 × 2,119.80
  4. Step 4: Simplify right side
    4,311.06x = 13,712,901.41
  5. Step 5: Solve for x
    x = 13,712,901.41/4,311.06
  6. Step 6: Final answer
    x = 3,180.87

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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.