Home / 3,180.83-4,771.16-1,425.36

Finding the Fourth Proportional to 3,180.83, 4,771.16 and 1,425.36

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Solution

The fourth proportional to 3,180.83, 4,771.16 and 1,425.36 is: 2,138.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.83 : 4,771.16 = 1,425.36 : x
  2. Step 2: Convert to fraction form
    3,180.83/4,771.16 = 1,425.36/x
  3. Step 3: Cross multiply
    3,180.83x = 4,771.16 × 1,425.36
  4. Step 4: Simplify right side
    3,180.83x = 6,800,620.62
  5. Step 5: Solve for x
    x = 6,800,620.62/3,180.83
  6. Step 6: Final answer
    x = 2,138.00

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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.