Home / 2,789.35-4,183.92-841.50

Finding the Fourth Proportional to 2,789.35, 4,183.92 and 841.50

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Solution

The fourth proportional to 2,789.35, 4,183.92 and 841.50 is: 1,262.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.35 : 4,183.92 = 841.50 : x
  2. Step 2: Convert to fraction form
    2,789.35/4,183.92 = 841.50/x
  3. Step 3: Cross multiply
    2,789.35x = 4,183.92 × 841.50
  4. Step 4: Simplify right side
    2,789.35x = 3,520,768.68
  5. Step 5: Solve for x
    x = 3,520,768.68/2,789.35
  6. Step 6: Final answer
    x = 1,262.22

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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.