Home / 4,949.20-6,831.36-2,854.72

Finding the Fourth Proportional to 4,949.20, 6,831.36 and 2,854.72

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Solution

The fourth proportional to 4,949.20, 6,831.36 and 2,854.72 is: 3,940.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949.20 : 6,831.36 = 2,854.72 : x
  2. Step 2: Convert to fraction form
    4,949.20/6,831.36 = 2,854.72/x
  3. Step 3: Cross multiply
    4,949.20x = 6,831.36 × 2,854.72
  4. Step 4: Simplify right side
    4,949.20x = 19,501,620.02
  5. Step 5: Solve for x
    x = 19,501,620.02/4,949.20
  6. Step 6: Final answer
    x = 3,940.36

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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.