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Finding the Fourth Proportional to 2,644.85, 3,645.74 and 1,759.11

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Solution

The fourth proportional to 2,644.85, 3,645.74 and 1,759.11 is: 2,424.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,644.85 : 3,645.74 = 1,759.11 : x
  2. Step 2: Convert to fraction form
    2,644.85/3,645.74 = 1,759.11/x
  3. Step 3: Cross multiply
    2,644.85x = 3,645.74 × 1,759.11
  4. Step 4: Simplify right side
    2,644.85x = 6,413,248.90
  5. Step 5: Solve for x
    x = 6,413,248.90/2,644.85
  6. Step 6: Final answer
    x = 2,424.81

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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.