Home / 2,786.08-4,180.79-1,030.78

Finding the Fourth Proportional to 2,786.08, 4,180.79 and 1,030.78

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Solution

The fourth proportional to 2,786.08, 4,180.79 and 1,030.78 is: 1,546.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.08 : 4,180.79 = 1,030.78 : x
  2. Step 2: Convert to fraction form
    2,786.08/4,180.79 = 1,030.78/x
  3. Step 3: Cross multiply
    2,786.08x = 4,180.79 × 1,030.78
  4. Step 4: Simplify right side
    2,786.08x = 4,309,480.64
  5. Step 5: Solve for x
    x = 4,309,480.64/2,786.08
  6. Step 6: Final answer
    x = 1,546.79

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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.