Home / 3,221.94-4,446.29-1,805.69

Finding the Fourth Proportional to 3,221.94, 4,446.29 and 1,805.69

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Solution

The fourth proportional to 3,221.94, 4,446.29 and 1,805.69 is: 2,491.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.94 : 4,446.29 = 1,805.69 : x
  2. Step 2: Convert to fraction form
    3,221.94/4,446.29 = 1,805.69/x
  3. Step 3: Cross multiply
    3,221.94x = 4,446.29 × 1,805.69
  4. Step 4: Simplify right side
    3,221.94x = 8,028,637.02
  5. Step 5: Solve for x
    x = 8,028,637.02/3,221.94
  6. Step 6: Final answer
    x = 2,491.86

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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.