Home / 3,230.48-4,456.68-2,111

Finding the Fourth Proportional to 3,230.48, 4,456.68 and 2,111

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Solution

The fourth proportional to 3,230.48, 4,456.68 and 2,111 is: 2,912.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.48 : 4,456.68 = 2,111 : x
  2. Step 2: Convert to fraction form
    3,230.48/4,456.68 = 2,111/x
  3. Step 3: Cross multiply
    3,230.48x = 4,456.68 × 2,111
  4. Step 4: Simplify right side
    3,230.48x = 9,408,051.48
  5. Step 5: Solve for x
    x = 9,408,051.48/3,230.48
  6. Step 6: Final answer
    x = 2,912.28

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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.