Home / 5,891.13-8,831.43-2,190.78

Finding the Fourth Proportional to 5,891.13, 8,831.43 and 2,190.78

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Solution

The fourth proportional to 5,891.13, 8,831.43 and 2,190.78 is: 3,284.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891.13 : 8,831.43 = 2,190.78 : x
  2. Step 2: Convert to fraction form
    5,891.13/8,831.43 = 2,190.78/x
  3. Step 3: Cross multiply
    5,891.13x = 8,831.43 × 2,190.78
  4. Step 4: Simplify right side
    5,891.13x = 19,347,720.22
  5. Step 5: Solve for x
    x = 19,347,720.22/5,891.13
  6. Step 6: Final answer
    x = 3,284.21

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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.