Home / 3,830.45-5,745.77-1,521.95

Finding the Fourth Proportional to 3,830.45, 5,745.77 and 1,521.95

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Solution

The fourth proportional to 3,830.45, 5,745.77 and 1,521.95 is: 2,282.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.45 : 5,745.77 = 1,521.95 : x
  2. Step 2: Convert to fraction form
    3,830.45/5,745.77 = 1,521.95/x
  3. Step 3: Cross multiply
    3,830.45x = 5,745.77 × 1,521.95
  4. Step 4: Simplify right side
    3,830.45x = 8,744,738.31
  5. Step 5: Solve for x
    x = 8,744,738.31/3,830.45
  6. Step 6: Final answer
    x = 2,282.96

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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.