Home / 4,917.97-6,786.79-2,928.61

Finding the Fourth Proportional to 4,917.97, 6,786.79 and 2,928.61

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Solution

The fourth proportional to 4,917.97, 6,786.79 and 2,928.61 is: 4,041.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.97 : 6,786.79 = 2,928.61 : x
  2. Step 2: Convert to fraction form
    4,917.97/6,786.79 = 2,928.61/x
  3. Step 3: Cross multiply
    4,917.97x = 6,786.79 × 2,928.61
  4. Step 4: Simplify right side
    4,917.97x = 19,875,824.05
  5. Step 5: Solve for x
    x = 19,875,824.05/4,917.97
  6. Step 6: Final answer
    x = 4,041.47

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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.