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Finding the Fourth Proportional to 2,206, 3,044.32 and 1,274.80

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Solution

The fourth proportional to 2,206, 3,044.32 and 1,274.80 is: 1,759.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206 : 3,044.32 = 1,274.80 : x
  2. Step 2: Convert to fraction form
    2,206/3,044.32 = 1,274.80/x
  3. Step 3: Cross multiply
    2,206x = 3,044.32 × 1,274.80
  4. Step 4: Simplify right side
    2,206x = 3,880,899.14
  5. Step 5: Solve for x
    x = 3,880,899.14/2,206
  6. Step 6: Final answer
    x = 1,759.25

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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.