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Finding the Fourth Proportional to 4,786.72, 6,605.74 and 2,796.94

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Solution

The fourth proportional to 4,786.72, 6,605.74 and 2,796.94 is: 3,859.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.72 : 6,605.74 = 2,796.94 : x
  2. Step 2: Convert to fraction form
    4,786.72/6,605.74 = 2,796.94/x
  3. Step 3: Cross multiply
    4,786.72x = 6,605.74 × 2,796.94
  4. Step 4: Simplify right side
    4,786.72x = 18,475,858.44
  5. Step 5: Solve for x
    x = 18,475,858.44/4,786.72
  6. Step 6: Final answer
    x = 3,859.82

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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.