Home / 3,220.39-4,443.80-1,893.61

Finding the Fourth Proportional to 3,220.39, 4,443.80 and 1,893.61

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Solution

The fourth proportional to 3,220.39, 4,443.80 and 1,893.61 is: 2,612.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.39 : 4,443.80 = 1,893.61 : x
  2. Step 2: Convert to fraction form
    3,220.39/4,443.80 = 1,893.61/x
  3. Step 3: Cross multiply
    3,220.39x = 4,443.80 × 1,893.61
  4. Step 4: Simplify right side
    3,220.39x = 8,414,820.20
  5. Step 5: Solve for x
    x = 8,414,820.20/3,220.39
  6. Step 6: Final answer
    x = 2,612.98

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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.