Home / 2,049.40-3,074.09-1,636.60

Finding the Fourth Proportional to 2,049.40, 3,074.09 and 1,636.60

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Solution

The fourth proportional to 2,049.40, 3,074.09 and 1,636.60 is: 2,454.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,049.40 : 3,074.09 = 1,636.60 : x
  2. Step 2: Convert to fraction form
    2,049.40/3,074.09 = 1,636.60/x
  3. Step 3: Cross multiply
    2,049.40x = 3,074.09 × 1,636.60
  4. Step 4: Simplify right side
    2,049.40x = 5,031,032.14
  5. Step 5: Solve for x
    x = 5,031,032.14/2,049.40
  6. Step 6: Final answer
    x = 2,454.89

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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.