Home / 3,186.22-4,399.11-1,993.01

Finding the Fourth Proportional to 3,186.22, 4,399.11 and 1,993.01

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Solution

The fourth proportional to 3,186.22, 4,399.11 and 1,993.01 is: 2,751.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.22 : 4,399.11 = 1,993.01 : x
  2. Step 2: Convert to fraction form
    3,186.22/4,399.11 = 1,993.01/x
  3. Step 3: Cross multiply
    3,186.22x = 4,399.11 × 1,993.01
  4. Step 4: Simplify right side
    3,186.22x = 8,767,460.26
  5. Step 5: Solve for x
    x = 8,767,460.26/3,186.22
  6. Step 6: Final answer
    x = 2,751.68

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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.