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Finding the Fourth Proportional to 4,891.88, 6,750.79 and 2,796.05

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Solution

The fourth proportional to 4,891.88, 6,750.79 and 2,796.05 is: 3,858.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891.88 : 6,750.79 = 2,796.05 : x
  2. Step 2: Convert to fraction form
    4,891.88/6,750.79 = 2,796.05/x
  3. Step 3: Cross multiply
    4,891.88x = 6,750.79 × 2,796.05
  4. Step 4: Simplify right side
    4,891.88x = 18,875,505.64
  5. Step 5: Solve for x
    x = 18,875,505.64/4,891.88
  6. Step 6: Final answer
    x = 3,858.54

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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.