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Finding the Fourth Proportional to 7,163.58, 10,745.77 and 1,898.45

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Solution

The fourth proportional to 7,163.58, 10,745.77 and 1,898.45 is: 2,847.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.58 : 10,745.77 = 1,898.45 : x
  2. Step 2: Convert to fraction form
    7,163.58/10,745.77 = 1,898.45/x
  3. Step 3: Cross multiply
    7,163.58x = 10,745.77 × 1,898.45
  4. Step 4: Simplify right side
    7,163.58x = 20,400,297.78
  5. Step 5: Solve for x
    x = 20,400,297.78/7,163.58
  6. Step 6: Final answer
    x = 2,847.78

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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.