Home / 2,790.07-4,185.12-842.41

Finding the Fourth Proportional to 2,790.07, 4,185.12 and 842.41

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Solution

The fourth proportional to 2,790.07, 4,185.12 and 842.41 is: 1,263.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.07 : 4,185.12 = 842.41 : x
  2. Step 2: Convert to fraction form
    2,790.07/4,185.12 = 842.41/x
  3. Step 3: Cross multiply
    2,790.07x = 4,185.12 × 842.41
  4. Step 4: Simplify right side
    2,790.07x = 3,525,586.94
  5. Step 5: Solve for x
    x = 3,525,586.94/2,790.07
  6. Step 6: Final answer
    x = 1,263.62

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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.