Home / 3,639.08-5,453.40-2,075.85

Finding the Fourth Proportional to 3,639.08, 5,453.40 and 2,075.85

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Solution

The fourth proportional to 3,639.08, 5,453.40 and 2,075.85 is: 3,110.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.08 : 5,453.40 = 2,075.85 : x
  2. Step 2: Convert to fraction form
    3,639.08/5,453.40 = 2,075.85/x
  3. Step 3: Cross multiply
    3,639.08x = 5,453.40 × 2,075.85
  4. Step 4: Simplify right side
    3,639.08x = 11,320,413.12
  5. Step 5: Solve for x
    x = 11,320,413.12/3,639.08
  6. Step 6: Final answer
    x = 3,110.79

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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.