Home / 2,786.59-4,180.61-1,226.90

Finding the Fourth Proportional to 2,786.59, 4,180.61 and 1,226.90

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Solution

The fourth proportional to 2,786.59, 4,180.61 and 1,226.90 is: 1,840.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.59 : 4,180.61 = 1,226.90 : x
  2. Step 2: Convert to fraction form
    2,786.59/4,180.61 = 1,226.90/x
  3. Step 3: Cross multiply
    2,786.59x = 4,180.61 × 1,226.90
  4. Step 4: Simplify right side
    2,786.59x = 5,129,190.41
  5. Step 5: Solve for x
    x = 5,129,190.41/2,786.59
  6. Step 6: Final answer
    x = 1,840.67

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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.