Home / 5,831.75-8,047.81-3,179.15

Finding the Fourth Proportional to 5,831.75, 8,047.81 and 3,179.15

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Solution

The fourth proportional to 5,831.75, 8,047.81 and 3,179.15 is: 4,387.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,831.75 : 8,047.81 = 3,179.15 : x
  2. Step 2: Convert to fraction form
    5,831.75/8,047.81 = 3,179.15/x
  3. Step 3: Cross multiply
    5,831.75x = 8,047.81 × 3,179.15
  4. Step 4: Simplify right side
    5,831.75x = 25,585,171.19
  5. Step 5: Solve for x
    x = 25,585,171.19/5,831.75
  6. Step 6: Final answer
    x = 4,387.22

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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.