Home / 3,840.92-5,749.08-2,729.65

Finding the Fourth Proportional to 3,840.92, 5,749.08 and 2,729.65

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Solution

The fourth proportional to 3,840.92, 5,749.08 and 2,729.65 is: 4,085.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.92 : 5,749.08 = 2,729.65 : x
  2. Step 2: Convert to fraction form
    3,840.92/5,749.08 = 2,729.65/x
  3. Step 3: Cross multiply
    3,840.92x = 5,749.08 × 2,729.65
  4. Step 4: Simplify right side
    3,840.92x = 15,692,962.39
  5. Step 5: Solve for x
    x = 15,692,962.39/3,840.92
  6. Step 6: Final answer
    x = 4,085.73

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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.