Home / 2,147.82-3,220.36-1,174.60

Finding the Fourth Proportional to 2,147.82, 3,220.36 and 1,174.60

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Solution

The fourth proportional to 2,147.82, 3,220.36 and 1,174.60 is: 1,761.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.82 : 3,220.36 = 1,174.60 : x
  2. Step 2: Convert to fraction form
    2,147.82/3,220.36 = 1,174.60/x
  3. Step 3: Cross multiply
    2,147.82x = 3,220.36 × 1,174.60
  4. Step 4: Simplify right side
    2,147.82x = 3,782,635.94
  5. Step 5: Solve for x
    x = 3,782,635.94/2,147.82
  6. Step 6: Final answer
    x = 1,761.15

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1.5x scale

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.