Home / 3,827.40-5,741.64-1,879.68

Finding the Fourth Proportional to 3,827.40, 5,741.64 and 1,879.68

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Solution

The fourth proportional to 3,827.40, 5,741.64 and 1,879.68 is: 2,819.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.40 : 5,741.64 = 1,879.68 : x
  2. Step 2: Convert to fraction form
    3,827.40/5,741.64 = 1,879.68/x
  3. Step 3: Cross multiply
    3,827.40x = 5,741.64 × 1,879.68
  4. Step 4: Simplify right side
    3,827.40x = 10,792,445.88
  5. Step 5: Solve for x
    x = 10,792,445.88/3,827.40
  6. Step 6: Final answer
    x = 2,819.79

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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.