Home / 2,487.22-3,728.40-1,027.39

Finding the Fourth Proportional to 2,487.22, 3,728.40 and 1,027.39

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Solution

The fourth proportional to 2,487.22, 3,728.40 and 1,027.39 is: 1,540.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.22 : 3,728.40 = 1,027.39 : x
  2. Step 2: Convert to fraction form
    2,487.22/3,728.40 = 1,027.39/x
  3. Step 3: Cross multiply
    2,487.22x = 3,728.40 × 1,027.39
  4. Step 4: Simplify right side
    2,487.22x = 3,830,520.88
  5. Step 5: Solve for x
    x = 3,830,520.88/2,487.22
  6. Step 6: Final answer
    x = 1,540.08

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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.