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Finding the Fourth Proportional to 4,786.75, 6,605.20 and 2,797.05

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Solution

The fourth proportional to 4,786.75, 6,605.20 and 2,797.05 is: 3,859.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.75 : 6,605.20 = 2,797.05 : x
  2. Step 2: Convert to fraction form
    4,786.75/6,605.20 = 2,797.05/x
  3. Step 3: Cross multiply
    4,786.75x = 6,605.20 × 2,797.05
  4. Step 4: Simplify right side
    4,786.75x = 18,475,074.66
  5. Step 5: Solve for x
    x = 18,475,074.66/4,786.75
  6. Step 6: Final answer
    x = 3,859.63

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Half scale
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Double scale
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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.