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Finding the Fourth Proportional to 5,855.32, 8,785.46 and 3,081.32

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Solution

The fourth proportional to 5,855.32, 8,785.46 and 3,081.32 is: 4,623.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.32 : 8,785.46 = 3,081.32 : x
  2. Step 2: Convert to fraction form
    5,855.32/8,785.46 = 3,081.32/x
  3. Step 3: Cross multiply
    5,855.32x = 8,785.46 × 3,081.32
  4. Step 4: Simplify right side
    5,855.32x = 27,070,813.61
  5. Step 5: Solve for x
    x = 27,070,813.61/5,855.32
  6. Step 6: Final answer
    x = 4,623.29

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1.5x scale

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.