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Finding the Fourth Proportional to 3,565.77, 4,917.78 and 2,671.61

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Solution

The fourth proportional to 3,565.77, 4,917.78 and 2,671.61 is: 3,684.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,565.77 : 4,917.78 = 2,671.61 : x
  2. Step 2: Convert to fraction form
    3,565.77/4,917.78 = 2,671.61/x
  3. Step 3: Cross multiply
    3,565.77x = 4,917.78 × 2,671.61
  4. Step 4: Simplify right side
    3,565.77x = 13,138,376.87
  5. Step 5: Solve for x
    x = 13,138,376.87/3,565.77
  6. Step 6: Final answer
    x = 3,684.58

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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.