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Finding the Fourth Proportional to 5,745.90, 8,618.61 and 1,850.22

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Solution

The fourth proportional to 5,745.90, 8,618.61 and 1,850.22 is: 2,775.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,745.90 : 8,618.61 = 1,850.22 : x
  2. Step 2: Convert to fraction form
    5,745.90/8,618.61 = 1,850.22/x
  3. Step 3: Cross multiply
    5,745.90x = 8,618.61 × 1,850.22
  4. Step 4: Simplify right side
    5,745.90x = 15,946,324.59
  5. Step 5: Solve for x
    x = 15,946,324.59/5,745.90
  6. Step 6: Final answer
    x = 2,775.25

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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.