Home / 4,217.88-6,327.90-1,621.02

Finding the Fourth Proportional to 4,217.88, 6,327.90 and 1,621.02

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Solution

The fourth proportional to 4,217.88, 6,327.90 and 1,621.02 is: 2,431.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,217.88 : 6,327.90 = 1,621.02 : x
  2. Step 2: Convert to fraction form
    4,217.88/6,327.90 = 1,621.02/x
  3. Step 3: Cross multiply
    4,217.88x = 6,327.90 × 1,621.02
  4. Step 4: Simplify right side
    4,217.88x = 10,257,652.46
  5. Step 5: Solve for x
    x = 10,257,652.46/4,217.88
  6. Step 6: Final answer
    x = 2,431.95

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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.