Home / 5,189.22-7,161.03-2,831.22

Finding the Fourth Proportional to 5,189.22, 7,161.03 and 2,831.22

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Solution

The fourth proportional to 5,189.22, 7,161.03 and 2,831.22 is: 3,907.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.22 : 7,161.03 = 2,831.22 : x
  2. Step 2: Convert to fraction form
    5,189.22/7,161.03 = 2,831.22/x
  3. Step 3: Cross multiply
    5,189.22x = 7,161.03 × 2,831.22
  4. Step 4: Simplify right side
    5,189.22x = 20,274,451.36
  5. Step 5: Solve for x
    x = 20,274,451.36/5,189.22
  6. Step 6: Final answer
    x = 3,907.03

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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.