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Finding the Fourth Proportional to 4,910.66, 6,776.85 and 2,786.15

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Solution

The fourth proportional to 4,910.66, 6,776.85 and 2,786.15 is: 3,844.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,910.66 : 6,776.85 = 2,786.15 : x
  2. Step 2: Convert to fraction form
    4,910.66/6,776.85 = 2,786.15/x
  3. Step 3: Cross multiply
    4,910.66x = 6,776.85 × 2,786.15
  4. Step 4: Simplify right side
    4,910.66x = 18,881,320.63
  5. Step 5: Solve for x
    x = 18,881,320.63/4,910.66
  6. Step 6: Final answer
    x = 3,844.97

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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.