Home / 6,112.45-9,163.81-2,991.12

Finding the Fourth Proportional to 6,112.45, 9,163.81 and 2,991.12

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Solution

The fourth proportional to 6,112.45, 9,163.81 and 2,991.12 is: 4,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,112.45 : 9,163.81 = 2,991.12 : x
  2. Step 2: Convert to fraction form
    6,112.45/9,163.81 = 2,991.12/x
  3. Step 3: Cross multiply
    6,112.45x = 9,163.81 × 2,991.12
  4. Step 4: Simplify right side
    6,112.45x = 27,410,055.37
  5. Step 5: Solve for x
    x = 27,410,055.37/6,112.45
  6. Step 6: Final answer
    x = 4,484.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.