Home / 3,145.20-4,717.79-1,845.96

Finding the Fourth Proportional to 3,145.20, 4,717.79 and 1,845.96

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Solution

The fourth proportional to 3,145.20, 4,717.79 and 1,845.96 is: 2,768.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.20 : 4,717.79 = 1,845.96 : x
  2. Step 2: Convert to fraction form
    3,145.20/4,717.79 = 1,845.96/x
  3. Step 3: Cross multiply
    3,145.20x = 4,717.79 × 1,845.96
  4. Step 4: Simplify right side
    3,145.20x = 8,708,842.40
  5. Step 5: Solve for x
    x = 8,708,842.40/3,145.20
  6. Step 6: Final answer
    x = 2,768.93

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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.