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Finding the Fourth Proportional to 3,694.80, 5,538.54 and 1,722.48

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Solution

The fourth proportional to 3,694.80, 5,538.54 and 1,722.48 is: 2,582.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,694.80 : 5,538.54 = 1,722.48 : x
  2. Step 2: Convert to fraction form
    3,694.80/5,538.54 = 1,722.48/x
  3. Step 3: Cross multiply
    3,694.80x = 5,538.54 × 1,722.48
  4. Step 4: Simplify right side
    3,694.80x = 9,540,024.38
  5. Step 5: Solve for x
    x = 9,540,024.38/3,694.80
  6. Step 6: Final answer
    x = 2,582.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.