Home / 3,163.86-4,742.91-1,313.82

Finding the Fourth Proportional to 3,163.86, 4,742.91 and 1,313.82

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Solution

The fourth proportional to 3,163.86, 4,742.91 and 1,313.82 is: 1,969.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.86 : 4,742.91 = 1,313.82 : x
  2. Step 2: Convert to fraction form
    3,163.86/4,742.91 = 1,313.82/x
  3. Step 3: Cross multiply
    3,163.86x = 4,742.91 × 1,313.82
  4. Step 4: Simplify right side
    3,163.86x = 6,231,330.02
  5. Step 5: Solve for x
    x = 6,231,330.02/3,163.86
  6. Step 6: Final answer
    x = 1,969.53

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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.