Home / 4,218.21-6,327.27-1,621.71

Finding the Fourth Proportional to 4,218.21, 6,327.27 and 1,621.71

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Solution

The fourth proportional to 4,218.21, 6,327.27 and 1,621.71 is: 2,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.21 : 6,327.27 = 1,621.71 : x
  2. Step 2: Convert to fraction form
    4,218.21/6,327.27 = 1,621.71/x
  3. Step 3: Cross multiply
    4,218.21x = 6,327.27 × 1,621.71
  4. Step 4: Simplify right side
    4,218.21x = 10,260,997.03
  5. Step 5: Solve for x
    x = 10,260,997.03/4,218.21
  6. Step 6: Final answer
    x = 2,432.55

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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.