Home / 3,790.40-5,675.36-1,962.56

Finding the Fourth Proportional to 3,790.40, 5,675.36 and 1,962.56

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Solution

The fourth proportional to 3,790.40, 5,675.36 and 1,962.56 is: 2,938.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.40 : 5,675.36 = 1,962.56 : x
  2. Step 2: Convert to fraction form
    3,790.40/5,675.36 = 1,962.56/x
  3. Step 3: Cross multiply
    3,790.40x = 5,675.36 × 1,962.56
  4. Step 4: Simplify right side
    3,790.40x = 11,138,234.52
  5. Step 5: Solve for x
    x = 11,138,234.52/3,790.40
  6. Step 6: Final answer
    x = 2,938.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.