Home / 3,531.28-5,291.44-2,749.42

Finding the Fourth Proportional to 3,531.28, 5,291.44 and 2,749.42

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Solution

The fourth proportional to 3,531.28, 5,291.44 and 2,749.42 is: 4,119.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.28 : 5,291.44 = 2,749.42 : x
  2. Step 2: Convert to fraction form
    3,531.28/5,291.44 = 2,749.42/x
  3. Step 3: Cross multiply
    3,531.28x = 5,291.44 × 2,749.42
  4. Step 4: Simplify right side
    3,531.28x = 14,548,390.96
  5. Step 5: Solve for x
    x = 14,548,390.96/3,531.28
  6. Step 6: Final answer
    x = 4,119.86

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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.