Home / 3,408.56-5,111.48-1,328.27

Finding the Fourth Proportional to 3,408.56, 5,111.48 and 1,328.27

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Solution

The fourth proportional to 3,408.56, 5,111.48 and 1,328.27 is: 1,991.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.56 : 5,111.48 = 1,328.27 : x
  2. Step 2: Convert to fraction form
    3,408.56/5,111.48 = 1,328.27/x
  3. Step 3: Cross multiply
    3,408.56x = 5,111.48 × 1,328.27
  4. Step 4: Simplify right side
    3,408.56x = 6,789,442.70
  5. Step 5: Solve for x
    x = 6,789,442.70/3,408.56
  6. Step 6: Final answer
    x = 1,991.88

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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.