Home / 4,949.70-6,831.27-2,853.78

Finding the Fourth Proportional to 4,949.70, 6,831.27 and 2,853.78

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Solution

The fourth proportional to 4,949.70, 6,831.27 and 2,853.78 is: 3,938.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949.70 : 6,831.27 = 2,853.78 : x
  2. Step 2: Convert to fraction form
    4,949.70/6,831.27 = 2,853.78/x
  3. Step 3: Cross multiply
    4,949.70x = 6,831.27 × 2,853.78
  4. Step 4: Simplify right side
    4,949.70x = 19,494,941.70
  5. Step 5: Solve for x
    x = 19,494,941.70/4,949.70
  6. Step 6: Final answer
    x = 3,938.61

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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.