Home / 3,221.68-4,446.80-1,895.81

Finding the Fourth Proportional to 3,221.68, 4,446.80 and 1,895.81

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Solution

The fourth proportional to 3,221.68, 4,446.80 and 1,895.81 is: 2,616.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.68 : 4,446.80 = 1,895.81 : x
  2. Step 2: Convert to fraction form
    3,221.68/4,446.80 = 1,895.81/x
  3. Step 3: Cross multiply
    3,221.68x = 4,446.80 × 1,895.81
  4. Step 4: Simplify right side
    3,221.68x = 8,430,278.43
  5. Step 5: Solve for x
    x = 8,430,278.43/3,221.68
  6. Step 6: Final answer
    x = 2,616.73

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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.