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Finding the Fourth Proportional to 3,641.78, 5,463.84 and 1,695.26

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Solution

The fourth proportional to 3,641.78, 5,463.84 and 1,695.26 is: 2,543.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,641.78 : 5,463.84 = 1,695.26 : x
  2. Step 2: Convert to fraction form
    3,641.78/5,463.84 = 1,695.26/x
  3. Step 3: Cross multiply
    3,641.78x = 5,463.84 × 1,695.26
  4. Step 4: Simplify right side
    3,641.78x = 9,262,629.40
  5. Step 5: Solve for x
    x = 9,262,629.40/3,641.78
  6. Step 6: Final answer
    x = 2,543.43

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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.