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Finding the Fourth Proportional to 5,855.42, 8,785.19 and 3,661.61

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Solution

The fourth proportional to 5,855.42, 8,785.19 and 3,661.61 is: 5,493.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.42 : 8,785.19 = 3,661.61 : x
  2. Step 2: Convert to fraction form
    5,855.42/8,785.19 = 3,661.61/x
  3. Step 3: Cross multiply
    5,855.42x = 8,785.19 × 3,661.61
  4. Step 4: Simplify right side
    5,855.42x = 32,167,904.78
  5. Step 5: Solve for x
    x = 32,167,904.78/5,855.42
  6. Step 6: Final answer
    x = 5,493.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.