Home / 2,806.28-4,209.44-1,245.86

Finding the Fourth Proportional to 2,806.28, 4,209.44 and 1,245.86

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Solution

The fourth proportional to 2,806.28, 4,209.44 and 1,245.86 is: 1,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.28 : 4,209.44 = 1,245.86 : x
  2. Step 2: Convert to fraction form
    2,806.28/4,209.44 = 1,245.86/x
  3. Step 3: Cross multiply
    2,806.28x = 4,209.44 × 1,245.86
  4. Step 4: Simplify right side
    2,806.28x = 5,244,376.77
  5. Step 5: Solve for x
    x = 5,244,376.77/2,806.28
  6. Step 6: Final answer
    x = 1,868.80

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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.