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Finding the Fourth Proportional to 4,993.75, 6,891.50 and 2,755.65

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Solution

The fourth proportional to 4,993.75, 6,891.50 and 2,755.65 is: 3,802.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.75 : 6,891.50 = 2,755.65 : x
  2. Step 2: Convert to fraction form
    4,993.75/6,891.50 = 2,755.65/x
  3. Step 3: Cross multiply
    4,993.75x = 6,891.50 × 2,755.65
  4. Step 4: Simplify right side
    4,993.75x = 18,990,561.98
  5. Step 5: Solve for x
    x = 18,990,561.98/4,993.75
  6. Step 6: Final answer
    x = 3,802.87

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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.