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Finding the Fourth Proportional to 3,951.99, 5,454.07 and 2,183.63

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Solution

The fourth proportional to 3,951.99, 5,454.07 and 2,183.63 is: 3,013.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.99 : 5,454.07 = 2,183.63 : x
  2. Step 2: Convert to fraction form
    3,951.99/5,454.07 = 2,183.63/x
  3. Step 3: Cross multiply
    3,951.99x = 5,454.07 × 2,183.63
  4. Step 4: Simplify right side
    3,951.99x = 11,909,638.14
  5. Step 5: Solve for x
    x = 11,909,638.14/3,951.99
  6. Step 6: Final answer
    x = 3,013.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.