Home / 3,351.30-5,028.30-1,271.22

Finding the Fourth Proportional to 3,351.30, 5,028.30 and 1,271.22

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Solution

The fourth proportional to 3,351.30, 5,028.30 and 1,271.22 is: 1,907.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.30 : 5,028.30 = 1,271.22 : x
  2. Step 2: Convert to fraction form
    3,351.30/5,028.30 = 1,271.22/x
  3. Step 3: Cross multiply
    3,351.30x = 5,028.30 × 1,271.22
  4. Step 4: Simplify right side
    3,351.30x = 6,392,075.53
  5. Step 5: Solve for x
    x = 6,392,075.53/3,351.30
  6. Step 6: Final answer
    x = 1,907.34

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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.