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Finding the Fourth Proportional to 2,247, 3,100.77 and 1,252.25

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Solution

The fourth proportional to 2,247, 3,100.77 and 1,252.25 is: 1,728.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247 : 3,100.77 = 1,252.25 : x
  2. Step 2: Convert to fraction form
    2,247/3,100.77 = 1,252.25/x
  3. Step 3: Cross multiply
    2,247x = 3,100.77 × 1,252.25
  4. Step 4: Simplify right side
    2,247x = 3,882,939.23
  5. Step 5: Solve for x
    x = 3,882,939.23/2,247
  6. Step 6: Final answer
    x = 1,728.05

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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.