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Finding the Fourth Proportional to 3,195.29, 4,792.44 and 855.45

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Solution

The fourth proportional to 3,195.29, 4,792.44 and 855.45 is: 1,283.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.29 : 4,792.44 = 855.45 : x
  2. Step 2: Convert to fraction form
    3,195.29/4,792.44 = 855.45/x
  3. Step 3: Cross multiply
    3,195.29x = 4,792.44 × 855.45
  4. Step 4: Simplify right side
    3,195.29x = 4,099,692.80
  5. Step 5: Solve for x
    x = 4,099,692.80/3,195.29
  6. Step 6: Final answer
    x = 1,283.04

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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.