Home / 3,221.46-4,443.99-1,894.32

Finding the Fourth Proportional to 3,221.46, 4,443.99 and 1,894.32

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Solution

The fourth proportional to 3,221.46, 4,443.99 and 1,894.32 is: 2,613.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.46 : 4,443.99 = 1,894.32 : x
  2. Step 2: Convert to fraction form
    3,221.46/4,443.99 = 1,894.32/x
  3. Step 3: Cross multiply
    3,221.46x = 4,443.99 × 1,894.32
  4. Step 4: Simplify right side
    3,221.46x = 8,418,339.14
  5. Step 5: Solve for x
    x = 8,418,339.14/3,221.46
  6. Step 6: Final answer
    x = 2,613.21

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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.