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Finding the Fourth Proportional to 4,910.94, 6,775.53 and 2,786.28

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Solution

The fourth proportional to 4,910.94, 6,775.53 and 2,786.28 is: 3,844.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,910.94 : 6,775.53 = 2,786.28 : x
  2. Step 2: Convert to fraction form
    4,910.94/6,775.53 = 2,786.28/x
  3. Step 3: Cross multiply
    4,910.94x = 6,775.53 × 2,786.28
  4. Step 4: Simplify right side
    4,910.94x = 18,878,523.73
  5. Step 5: Solve for x
    x = 18,878,523.73/4,910.94
  6. Step 6: Final answer
    x = 3,844.18

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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.