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Finding the Fourth Proportional to 3,850.55, 5,776.43 and 1,252.88

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Solution

The fourth proportional to 3,850.55, 5,776.43 and 1,252.88 is: 1,879.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.55 : 5,776.43 = 1,252.88 : x
  2. Step 2: Convert to fraction form
    3,850.55/5,776.43 = 1,252.88/x
  3. Step 3: Cross multiply
    3,850.55x = 5,776.43 × 1,252.88
  4. Step 4: Simplify right side
    3,850.55x = 7,237,173.62
  5. Step 5: Solve for x
    x = 7,237,173.62/3,850.55
  6. Step 6: Final answer
    x = 1,879.52

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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.