Home / 2,831.64-4,247.46-2,766.84

Finding the Fourth Proportional to 2,831.64, 4,247.46 and 2,766.84

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Solution

The fourth proportional to 2,831.64, 4,247.46 and 2,766.84 is: 4,150.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.64 : 4,247.46 = 2,766.84 : x
  2. Step 2: Convert to fraction form
    2,831.64/4,247.46 = 2,766.84/x
  3. Step 3: Cross multiply
    2,831.64x = 4,247.46 × 2,766.84
  4. Step 4: Simplify right side
    2,831.64x = 11,752,042.23
  5. Step 5: Solve for x
    x = 11,752,042.23/2,831.64
  6. Step 6: Final answer
    x = 4,150.26

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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.