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Finding the Fourth Proportional to 3,266.80, 4,507.74 and 1,940.26

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Solution

The fourth proportional to 3,266.80, 4,507.74 and 1,940.26 is: 2,677.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,266.80 : 4,507.74 = 1,940.26 : x
  2. Step 2: Convert to fraction form
    3,266.80/4,507.74 = 1,940.26/x
  3. Step 3: Cross multiply
    3,266.80x = 4,507.74 × 1,940.26
  4. Step 4: Simplify right side
    3,266.80x = 8,746,187.61
  5. Step 5: Solve for x
    x = 8,746,187.61/3,266.80
  6. Step 6: Final answer
    x = 2,677.30

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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.