Home / 5,112.06-7,674.66-3,942.81

Finding the Fourth Proportional to 5,112.06, 7,674.66 and 3,942.81

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Solution

The fourth proportional to 5,112.06, 7,674.66 and 3,942.81 is: 5,919.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.06 : 7,674.66 = 3,942.81 : x
  2. Step 2: Convert to fraction form
    5,112.06/7,674.66 = 3,942.81/x
  3. Step 3: Cross multiply
    5,112.06x = 7,674.66 × 3,942.81
  4. Step 4: Simplify right side
    5,112.06x = 30,259,726.19
  5. Step 5: Solve for x
    x = 30,259,726.19/5,112.06
  6. Step 6: Final answer
    x = 5,919.28

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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.