Home / 3,220.13-4,443.69-1,893.92

Finding the Fourth Proportional to 3,220.13, 4,443.69 and 1,893.92

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Solution

The fourth proportional to 3,220.13, 4,443.69 and 1,893.92 is: 2,613.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.13 : 4,443.69 = 1,893.92 : x
  2. Step 2: Convert to fraction form
    3,220.13/4,443.69 = 1,893.92/x
  3. Step 3: Cross multiply
    3,220.13x = 4,443.69 × 1,893.92
  4. Step 4: Simplify right side
    3,220.13x = 8,415,978.25
  5. Step 5: Solve for x
    x = 8,415,978.25/3,220.13
  6. Step 6: Final answer
    x = 2,613.55

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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.