Home / 4,003.96-5,530.80-3,220.96

Finding the Fourth Proportional to 4,003.96, 5,530.80 and 3,220.96

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Solution

The fourth proportional to 4,003.96, 5,530.80 and 3,220.96 is: 4,449.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,003.96 : 5,530.80 = 3,220.96 : x
  2. Step 2: Convert to fraction form
    4,003.96/5,530.80 = 3,220.96/x
  3. Step 3: Cross multiply
    4,003.96x = 5,530.80 × 3,220.96
  4. Step 4: Simplify right side
    4,003.96x = 17,814,485.57
  5. Step 5: Solve for x
    x = 17,814,485.57/4,003.96
  6. Step 6: Final answer
    x = 4,449.22

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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.