Home / 3,639.34-5,450.05-2,075.48

Finding the Fourth Proportional to 3,639.34, 5,450.05 and 2,075.48

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Solution

The fourth proportional to 3,639.34, 5,450.05 and 2,075.48 is: 3,108.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.34 : 5,450.05 = 2,075.48 : x
  2. Step 2: Convert to fraction form
    3,639.34/5,450.05 = 2,075.48/x
  3. Step 3: Cross multiply
    3,639.34x = 5,450.05 × 2,075.48
  4. Step 4: Simplify right side
    3,639.34x = 11,311,469.21
  5. Step 5: Solve for x
    x = 11,311,469.21/3,639.34
  6. Step 6: Final answer
    x = 3,108.11

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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.