Home / 2,469.48-3,408.74-1,421.96

Finding the Fourth Proportional to 2,469.48, 3,408.74 and 1,421.96

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Solution

The fourth proportional to 2,469.48, 3,408.74 and 1,421.96 is: 1,962.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,469.48 : 3,408.74 = 1,421.96 : x
  2. Step 2: Convert to fraction form
    2,469.48/3,408.74 = 1,421.96/x
  3. Step 3: Cross multiply
    2,469.48x = 3,408.74 × 1,421.96
  4. Step 4: Simplify right side
    2,469.48x = 4,847,091.93
  5. Step 5: Solve for x
    x = 4,847,091.93/2,469.48
  6. Step 6: Final answer
    x = 1,962.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.