Home / 3,679.45-5,075.91-2,106.64

Finding the Fourth Proportional to 3,679.45, 5,075.91 and 2,106.64

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Solution

The fourth proportional to 3,679.45, 5,075.91 and 2,106.64 is: 2,906.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.45 : 5,075.91 = 2,106.64 : x
  2. Step 2: Convert to fraction form
    3,679.45/5,075.91 = 2,106.64/x
  3. Step 3: Cross multiply
    3,679.45x = 5,075.91 × 2,106.64
  4. Step 4: Simplify right side
    3,679.45x = 10,693,115.04
  5. Step 5: Solve for x
    x = 10,693,115.04/3,679.45
  6. Step 6: Final answer
    x = 2,906.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.