Home / 3,221.64-4,832.82-1,247.22

Finding the Fourth Proportional to 3,221.64, 4,832.82 and 1,247.22

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Solution

The fourth proportional to 3,221.64, 4,832.82 and 1,247.22 is: 1,870.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.64 : 4,832.82 = 1,247.22 : x
  2. Step 2: Convert to fraction form
    3,221.64/4,832.82 = 1,247.22/x
  3. Step 3: Cross multiply
    3,221.64x = 4,832.82 × 1,247.22
  4. Step 4: Simplify right side
    3,221.64x = 6,027,589.76
  5. Step 5: Solve for x
    x = 6,027,589.76/3,221.64
  6. Step 6: Final answer
    x = 1,870.97

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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.