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Finding the Fourth Proportional to 4,891.78, 6,748.99 and 2,767.06

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Solution

The fourth proportional to 4,891.78, 6,748.99 and 2,767.06 is: 3,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891.78 : 6,748.99 = 2,767.06 : x
  2. Step 2: Convert to fraction form
    4,891.78/6,748.99 = 2,767.06/x
  3. Step 3: Cross multiply
    4,891.78x = 6,748.99 × 2,767.06
  4. Step 4: Simplify right side
    4,891.78x = 18,674,860.27
  5. Step 5: Solve for x
    x = 18,674,860.27/4,891.78
  6. Step 6: Final answer
    x = 3,817.60

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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.