Home / 4,221.86-6,336.60-2,143.30

Finding the Fourth Proportional to 4,221.86, 6,336.60 and 2,143.30

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Solution

The fourth proportional to 4,221.86, 6,336.60 and 2,143.30 is: 3,216.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.86 : 6,336.60 = 2,143.30 : x
  2. Step 2: Convert to fraction form
    4,221.86/6,336.60 = 2,143.30/x
  3. Step 3: Cross multiply
    4,221.86x = 6,336.60 × 2,143.30
  4. Step 4: Simplify right side
    4,221.86x = 13,581,234.78
  5. Step 5: Solve for x
    x = 13,581,234.78/4,221.86
  6. Step 6: Final answer
    x = 3,216.88

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1.5x scale

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.