Home / 4,311.68-6,468.48-2,121.44

Finding the Fourth Proportional to 4,311.68, 6,468.48 and 2,121.44

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Solution

The fourth proportional to 4,311.68, 6,468.48 and 2,121.44 is: 3,182.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.68 : 6,468.48 = 2,121.44 : x
  2. Step 2: Convert to fraction form
    4,311.68/6,468.48 = 2,121.44/x
  3. Step 3: Cross multiply
    4,311.68x = 6,468.48 × 2,121.44
  4. Step 4: Simplify right side
    4,311.68x = 13,722,492.21
  5. Step 5: Solve for x
    x = 13,722,492.21/4,311.68
  6. Step 6: Final answer
    x = 3,182.63

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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.