Home / 1,647.14-2,469.90-1,091.48

Finding the Fourth Proportional to 1,647.14, 2,469.90 and 1,091.48

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Solution

The fourth proportional to 1,647.14, 2,469.90 and 1,091.48 is: 1,636.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.14 : 2,469.90 = 1,091.48 : x
  2. Step 2: Convert to fraction form
    1,647.14/2,469.90 = 1,091.48/x
  3. Step 3: Cross multiply
    1,647.14x = 2,469.90 × 1,091.48
  4. Step 4: Simplify right side
    1,647.14x = 2,695,846.45
  5. Step 5: Solve for x
    x = 2,695,846.45/1,647.14
  6. Step 6: Final answer
    x = 1,636.68

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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.