Home / 3,138.30-4,704.36-1,384.26

Finding the Fourth Proportional to 3,138.30, 4,704.36 and 1,384.26

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Solution

The fourth proportional to 3,138.30, 4,704.36 and 1,384.26 is: 2,075.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.30 : 4,704.36 = 1,384.26 : x
  2. Step 2: Convert to fraction form
    3,138.30/4,704.36 = 1,384.26/x
  3. Step 3: Cross multiply
    3,138.30x = 4,704.36 × 1,384.26
  4. Step 4: Simplify right side
    3,138.30x = 6,512,057.37
  5. Step 5: Solve for x
    x = 6,512,057.37/3,138.30
  6. Step 6: Final answer
    x = 2,075.03

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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.