Home / 3,749.94-5,621.19-2,107.86

Finding the Fourth Proportional to 3,749.94, 5,621.19 and 2,107.86

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Solution

The fourth proportional to 3,749.94, 5,621.19 and 2,107.86 is: 3,159.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.94 : 5,621.19 = 2,107.86 : x
  2. Step 2: Convert to fraction form
    3,749.94/5,621.19 = 2,107.86/x
  3. Step 3: Cross multiply
    3,749.94x = 5,621.19 × 2,107.86
  4. Step 4: Simplify right side
    3,749.94x = 11,848,681.55
  5. Step 5: Solve for x
    x = 11,848,681.55/3,749.94
  6. Step 6: Final answer
    x = 3,159.70

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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.