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Finding the Fourth Proportional to 3,266.84, 4,508.52 and 1,940.80

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Solution

The fourth proportional to 3,266.84, 4,508.52 and 1,940.80 is: 2,678.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,266.84 : 4,508.52 = 1,940.80 : x
  2. Step 2: Convert to fraction form
    3,266.84/4,508.52 = 1,940.80/x
  3. Step 3: Cross multiply
    3,266.84x = 4,508.52 × 1,940.80
  4. Step 4: Simplify right side
    3,266.84x = 8,750,135.62
  5. Step 5: Solve for x
    x = 8,750,135.62/3,266.84
  6. Step 6: Final answer
    x = 2,678.47

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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.