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Finding the Fourth Proportional to 3,850.95, 5,775.53 and 1,252.47

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Solution

The fourth proportional to 3,850.95, 5,775.53 and 1,252.47 is: 1,878.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.95 : 5,775.53 = 1,252.47 : x
  2. Step 2: Convert to fraction form
    3,850.95/5,775.53 = 1,252.47/x
  3. Step 3: Cross multiply
    3,850.95x = 5,775.53 × 1,252.47
  4. Step 4: Simplify right side
    3,850.95x = 7,233,671.80
  5. Step 5: Solve for x
    x = 7,233,671.80/3,850.95
  6. Step 6: Final answer
    x = 1,878.41

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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.