Home / 3,221.18-4,445.07-1,824.38

Finding the Fourth Proportional to 3,221.18, 4,445.07 and 1,824.38

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Solution

The fourth proportional to 3,221.18, 4,445.07 and 1,824.38 is: 2,517.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.18 : 4,445.07 = 1,824.38 : x
  2. Step 2: Convert to fraction form
    3,221.18/4,445.07 = 1,824.38/x
  3. Step 3: Cross multiply
    3,221.18x = 4,445.07 × 1,824.38
  4. Step 4: Simplify right side
    3,221.18x = 8,109,496.81
  5. Step 5: Solve for x
    x = 8,109,496.81/3,221.18
  6. Step 6: Final answer
    x = 2,517.55

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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.