Home / 3,779.90-5,216.19-2,207.96

Finding the Fourth Proportional to 3,779.90, 5,216.19 and 2,207.96

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Solution

The fourth proportional to 3,779.90, 5,216.19 and 2,207.96 is: 3,046.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.90 : 5,216.19 = 2,207.96 : x
  2. Step 2: Convert to fraction form
    3,779.90/5,216.19 = 2,207.96/x
  3. Step 3: Cross multiply
    3,779.90x = 5,216.19 × 2,207.96
  4. Step 4: Simplify right side
    3,779.90x = 11,517,138.87
  5. Step 5: Solve for x
    x = 11,517,138.87/3,779.90
  6. Step 6: Final answer
    x = 3,046.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.