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Finding the Fourth Proportional to 3,643.80, 5,463.72 and 1,694.28

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Solution

The fourth proportional to 3,643.80, 5,463.72 and 1,694.28 is: 2,540.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.80 : 5,463.72 = 1,694.28 : x
  2. Step 2: Convert to fraction form
    3,643.80/5,463.72 = 1,694.28/x
  3. Step 3: Cross multiply
    3,643.80x = 5,463.72 × 1,694.28
  4. Step 4: Simplify right side
    3,643.80x = 9,257,071.52
  5. Step 5: Solve for x
    x = 9,257,071.52/3,643.80
  6. Step 6: Final answer
    x = 2,540.50

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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.