Home / 3,188.30-4,783.11-1,338.33

Finding the Fourth Proportional to 3,188.30, 4,783.11 and 1,338.33

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Solution

The fourth proportional to 3,188.30, 4,783.11 and 1,338.33 is: 2,007.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.30 : 4,783.11 = 1,338.33 : x
  2. Step 2: Convert to fraction form
    3,188.30/4,783.11 = 1,338.33/x
  3. Step 3: Cross multiply
    3,188.30x = 4,783.11 × 1,338.33
  4. Step 4: Simplify right side
    3,188.30x = 6,401,356.65
  5. Step 5: Solve for x
    x = 6,401,356.65/3,188.30
  6. Step 6: Final answer
    x = 2,007.77

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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.