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Finding the Fourth Proportional to 5,510, 7,610.28 and 3,738.54

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Solution

The fourth proportional to 5,510, 7,610.28 and 3,738.54 is: 5,163.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,510 : 7,610.28 = 3,738.54 : x
  2. Step 2: Convert to fraction form
    5,510/7,610.28 = 3,738.54/x
  3. Step 3: Cross multiply
    5,510x = 7,610.28 × 3,738.54
  4. Step 4: Simplify right side
    5,510x = 28,451,336.19
  5. Step 5: Solve for x
    x = 28,451,336.19/5,510
  6. Step 6: Final answer
    x = 5,163.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.