Home / 3,408.96-5,107.26-1,561.62

Finding the Fourth Proportional to 3,408.96, 5,107.26 and 1,561.62

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Solution

The fourth proportional to 3,408.96, 5,107.26 and 1,561.62 is: 2,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.96 : 5,107.26 = 1,561.62 : x
  2. Step 2: Convert to fraction form
    3,408.96/5,107.26 = 1,561.62/x
  3. Step 3: Cross multiply
    3,408.96x = 5,107.26 × 1,561.62
  4. Step 4: Simplify right side
    3,408.96x = 7,975,599.36
  5. Step 5: Solve for x
    x = 7,975,599.36/3,408.96
  6. Step 6: Final answer
    x = 2,339.60

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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.