Home / 2,409.30-3,609.45-2,021.88

Finding the Fourth Proportional to 2,409.30, 3,609.45 and 2,021.88

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Solution

The fourth proportional to 2,409.30, 3,609.45 and 2,021.88 is: 3,029.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.30 : 3,609.45 = 2,021.88 : x
  2. Step 2: Convert to fraction form
    2,409.30/3,609.45 = 2,021.88/x
  3. Step 3: Cross multiply
    2,409.30x = 3,609.45 × 2,021.88
  4. Step 4: Simplify right side
    2,409.30x = 7,297,874.77
  5. Step 5: Solve for x
    x = 7,297,874.77/2,409.30
  6. Step 6: Final answer
    x = 3,029.04

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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.