Home / 3,898.72-5,839.36-2,749.60

Finding the Fourth Proportional to 3,898.72, 5,839.36 and 2,749.60

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Solution

The fourth proportional to 3,898.72, 5,839.36 and 2,749.60 is: 4,118.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.72 : 5,839.36 = 2,749.60 : x
  2. Step 2: Convert to fraction form
    3,898.72/5,839.36 = 2,749.60/x
  3. Step 3: Cross multiply
    3,898.72x = 5,839.36 × 2,749.60
  4. Step 4: Simplify right side
    3,898.72x = 16,055,904.26
  5. Step 5: Solve for x
    x = 16,055,904.26/3,898.72
  6. Step 6: Final answer
    x = 4,118.25

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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.