Home / 5,351.78-8,022.21-1,840.74

Finding the Fourth Proportional to 5,351.78, 8,022.21 and 1,840.74

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Solution

The fourth proportional to 5,351.78, 8,022.21 and 1,840.74 is: 2,759.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351.78 : 8,022.21 = 1,840.74 : x
  2. Step 2: Convert to fraction form
    5,351.78/8,022.21 = 1,840.74/x
  3. Step 3: Cross multiply
    5,351.78x = 8,022.21 × 1,840.74
  4. Step 4: Simplify right side
    5,351.78x = 14,766,765.85
  5. Step 5: Solve for x
    x = 14,766,765.85/5,351.78
  6. Step 6: Final answer
    x = 2,759.22

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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.