Home / 1,163.16-1,745.78-1,039.56

Finding the Fourth Proportional to 1,163.16, 1,745.78 and 1,039.56

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Solution

The fourth proportional to 1,163.16, 1,745.78 and 1,039.56 is: 1,560.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.16 : 1,745.78 = 1,039.56 : x
  2. Step 2: Convert to fraction form
    1,163.16/1,745.78 = 1,039.56/x
  3. Step 3: Cross multiply
    1,163.16x = 1,745.78 × 1,039.56
  4. Step 4: Simplify right side
    1,163.16x = 1,814,837.86
  5. Step 5: Solve for x
    x = 1,814,837.86/1,163.16
  6. Step 6: Final answer
    x = 1,560.27

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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.