Home / 3,745.50-5,618.54-2,185.66

Finding the Fourth Proportional to 3,745.50, 5,618.54 and 2,185.66

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Solution

The fourth proportional to 3,745.50, 5,618.54 and 2,185.66 is: 3,278.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.50 : 5,618.54 = 2,185.66 : x
  2. Step 2: Convert to fraction form
    3,745.50/5,618.54 = 2,185.66/x
  3. Step 3: Cross multiply
    3,745.50x = 5,618.54 × 2,185.66
  4. Step 4: Simplify right side
    3,745.50x = 12,280,218.14
  5. Step 5: Solve for x
    x = 12,280,218.14/3,745.50
  6. Step 6: Final answer
    x = 3,278.66

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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.