Home / 2,587.12-3,879.11-1,027.33

Finding the Fourth Proportional to 2,587.12, 3,879.11 and 1,027.33

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Solution

The fourth proportional to 2,587.12, 3,879.11 and 1,027.33 is: 1,540.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.12 : 3,879.11 = 1,027.33 : x
  2. Step 2: Convert to fraction form
    2,587.12/3,879.11 = 1,027.33/x
  3. Step 3: Cross multiply
    2,587.12x = 3,879.11 × 1,027.33
  4. Step 4: Simplify right side
    2,587.12x = 3,985,118.95
  5. Step 5: Solve for x
    x = 3,985,118.95/2,587.12
  6. Step 6: Final answer
    x = 1,540.37

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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.