Home / 3,980.67-5,492.43-2,408.73

Finding the Fourth Proportional to 3,980.67, 5,492.43 and 2,408.73

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Solution

The fourth proportional to 3,980.67, 5,492.43 and 2,408.73 is: 3,323.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.67 : 5,492.43 = 2,408.73 : x
  2. Step 2: Convert to fraction form
    3,980.67/5,492.43 = 2,408.73/x
  3. Step 3: Cross multiply
    3,980.67x = 5,492.43 × 2,408.73
  4. Step 4: Simplify right side
    3,980.67x = 13,229,780.91
  5. Step 5: Solve for x
    x = 13,229,780.91/3,980.67
  6. Step 6: Final answer
    x = 3,323.51

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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.