Home / 3,221.64-4,445.82-1,824.48

Finding the Fourth Proportional to 3,221.64, 4,445.82 and 1,824.48

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Solution

The fourth proportional to 3,221.64, 4,445.82 and 1,824.48 is: 2,517.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.64 : 4,445.82 = 1,824.48 : x
  2. Step 2: Convert to fraction form
    3,221.64/4,445.82 = 1,824.48/x
  3. Step 3: Cross multiply
    3,221.64x = 4,445.82 × 1,824.48
  4. Step 4: Simplify right side
    3,221.64x = 8,111,309.67
  5. Step 5: Solve for x
    x = 8,111,309.67/3,221.64
  6. Step 6: Final answer
    x = 2,517.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.