Home / 4,917.12-6,786.38-2,792.88

Finding the Fourth Proportional to 4,917.12, 6,786.38 and 2,792.88

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Solution

The fourth proportional to 4,917.12, 6,786.38 and 2,792.88 is: 3,854.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.12 : 6,786.38 = 2,792.88 : x
  2. Step 2: Convert to fraction form
    4,917.12/6,786.38 = 2,792.88/x
  3. Step 3: Cross multiply
    4,917.12x = 6,786.38 × 2,792.88
  4. Step 4: Simplify right side
    4,917.12x = 18,953,544.97
  5. Step 5: Solve for x
    x = 18,953,544.97/4,917.12
  6. Step 6: Final answer
    x = 3,854.60

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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.