Home / 3,911.60-5,398.30-2,233.08

Finding the Fourth Proportional to 3,911.60, 5,398.30 and 2,233.08

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Solution

The fourth proportional to 3,911.60, 5,398.30 and 2,233.08 is: 3,081.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.60 : 5,398.30 = 2,233.08 : x
  2. Step 2: Convert to fraction form
    3,911.60/5,398.30 = 2,233.08/x
  3. Step 3: Cross multiply
    3,911.60x = 5,398.30 × 2,233.08
  4. Step 4: Simplify right side
    3,911.60x = 12,054,813.56
  5. Step 5: Solve for x
    x = 12,054,813.56/3,911.60
  6. Step 6: Final answer
    x = 3,081.81

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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.