Home / 7,790.28-11,690.24-3,173.28

Finding the Fourth Proportional to 7,790.28, 11,690.24 and 3,173.28

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Solution

The fourth proportional to 7,790.28, 11,690.24 and 3,173.28 is: 4,761.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.28 : 11,690.24 = 3,173.28 : x
  2. Step 2: Convert to fraction form
    7,790.28/11,690.24 = 3,173.28/x
  3. Step 3: Cross multiply
    7,790.28x = 11,690.24 × 3,173.28
  4. Step 4: Simplify right side
    7,790.28x = 37,096,404.79
  5. Step 5: Solve for x
    x = 37,096,404.79/7,790.28
  6. Step 6: Final answer
    x = 4,761.88

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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.