Home / 3,193.91-4,789.31-1,113.86

Finding the Fourth Proportional to 3,193.91, 4,789.31 and 1,113.86

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Solution

The fourth proportional to 3,193.91, 4,789.31 and 1,113.86 is: 1,670.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,193.91 : 4,789.31 = 1,113.86 : x
  2. Step 2: Convert to fraction form
    3,193.91/4,789.31 = 1,113.86/x
  3. Step 3: Cross multiply
    3,193.91x = 4,789.31 × 1,113.86
  4. Step 4: Simplify right side
    3,193.91x = 5,334,620.84
  5. Step 5: Solve for x
    x = 5,334,620.84/3,193.91
  6. Step 6: Final answer
    x = 1,670.25

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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.