Home / 3,790.40-5,228-2,372.96

Finding the Fourth Proportional to 3,790.40, 5,228 and 2,372.96

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Solution

The fourth proportional to 3,790.40, 5,228 and 2,372.96 is: 3,272.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.40 : 5,228 = 2,372.96 : x
  2. Step 2: Convert to fraction form
    3,790.40/5,228 = 2,372.96/x
  3. Step 3: Cross multiply
    3,790.40x = 5,228 × 2,372.96
  4. Step 4: Simplify right side
    3,790.40x = 12,405,834.88
  5. Step 5: Solve for x
    x = 12,405,834.88/3,790.40
  6. Step 6: Final answer
    x = 3,272.96

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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.