Home / 2,806.19-4,205.87-1,984.70

Finding the Fourth Proportional to 2,806.19, 4,205.87 and 1,984.70

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Solution

The fourth proportional to 2,806.19, 4,205.87 and 1,984.70 is: 2,974.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.19 : 4,205.87 = 1,984.70 : x
  2. Step 2: Convert to fraction form
    2,806.19/4,205.87 = 1,984.70/x
  3. Step 3: Cross multiply
    2,806.19x = 4,205.87 × 1,984.70
  4. Step 4: Simplify right side
    2,806.19x = 8,347,409.39
  5. Step 5: Solve for x
    x = 8,347,409.39/2,806.19
  6. Step 6: Final answer
    x = 2,974.64

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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.