Home / 3,183.90-4,779.45-2,456.70

Finding the Fourth Proportional to 3,183.90, 4,779.45 and 2,456.70

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Solution

The fourth proportional to 3,183.90, 4,779.45 and 2,456.70 is: 3,687.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.90 : 4,779.45 = 2,456.70 : x
  2. Step 2: Convert to fraction form
    3,183.90/4,779.45 = 2,456.70/x
  3. Step 3: Cross multiply
    3,183.90x = 4,779.45 × 2,456.70
  4. Step 4: Simplify right side
    3,183.90x = 11,741,674.82
  5. Step 5: Solve for x
    x = 11,741,674.82/3,183.90
  6. Step 6: Final answer
    x = 3,687.83

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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.