Home / 3,189.66-4,403.88-1,995.11

Finding the Fourth Proportional to 3,189.66, 4,403.88 and 1,995.11

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Solution

The fourth proportional to 3,189.66, 4,403.88 and 1,995.11 is: 2,754.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.66 : 4,403.88 = 1,995.11 : x
  2. Step 2: Convert to fraction form
    3,189.66/4,403.88 = 1,995.11/x
  3. Step 3: Cross multiply
    3,189.66x = 4,403.88 × 1,995.11
  4. Step 4: Simplify right side
    3,189.66x = 8,786,203.01
  5. Step 5: Solve for x
    x = 8,786,203.01/3,189.66
  6. Step 6: Final answer
    x = 2,754.59

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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.