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Finding the Fourth Proportional to 4,993.98, 6,891.72 and 2,755.86

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Solution

The fourth proportional to 4,993.98, 6,891.72 and 2,755.86 is: 3,803.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.98 : 6,891.72 = 2,755.86 : x
  2. Step 2: Convert to fraction form
    4,993.98/6,891.72 = 2,755.86/x
  3. Step 3: Cross multiply
    4,993.98x = 6,891.72 × 2,755.86
  4. Step 4: Simplify right side
    4,993.98x = 18,992,615.48
  5. Step 5: Solve for x
    x = 18,992,615.48/4,993.98
  6. Step 6: Final answer
    x = 3,803.10

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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.