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Finding the Fourth Proportional to 3,755.22, 5,629.78 and 1,565.60

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Solution

The fourth proportional to 3,755.22, 5,629.78 and 1,565.60 is: 2,347.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.22 : 5,629.78 = 1,565.60 : x
  2. Step 2: Convert to fraction form
    3,755.22/5,629.78 = 1,565.60/x
  3. Step 3: Cross multiply
    3,755.22x = 5,629.78 × 1,565.60
  4. Step 4: Simplify right side
    3,755.22x = 8,813,983.57
  5. Step 5: Solve for x
    x = 8,813,983.57/3,755.22
  6. Step 6: Final answer
    x = 2,347.13

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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.