Home / 3,025.62-4,540.20-1,638.90

Finding the Fourth Proportional to 3,025.62, 4,540.20 and 1,638.90

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Solution

The fourth proportional to 3,025.62, 4,540.20 and 1,638.90 is: 2,459.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,025.62 : 4,540.20 = 1,638.90 : x
  2. Step 2: Convert to fraction form
    3,025.62/4,540.20 = 1,638.90/x
  3. Step 3: Cross multiply
    3,025.62x = 4,540.20 × 1,638.90
  4. Step 4: Simplify right side
    3,025.62x = 7,440,933.78
  5. Step 5: Solve for x
    x = 7,440,933.78/3,025.62
  6. Step 6: Final answer
    x = 2,459.31

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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.