Home / 2,587.26-3,879.48-1,025.68

Finding the Fourth Proportional to 2,587.26, 3,879.48 and 1,025.68

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Solution

The fourth proportional to 2,587.26, 3,879.48 and 1,025.68 is: 1,537.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.26 : 3,879.48 = 1,025.68 : x
  2. Step 2: Convert to fraction form
    2,587.26/3,879.48 = 1,025.68/x
  3. Step 3: Cross multiply
    2,587.26x = 3,879.48 × 1,025.68
  4. Step 4: Simplify right side
    2,587.26x = 3,979,105.05
  5. Step 5: Solve for x
    x = 3,979,105.05/2,587.26
  6. Step 6: Final answer
    x = 1,537.96

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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.