Home / 8,722.41-13,081.30-3,790.89

Finding the Fourth Proportional to 8,722.41, 13,081.30 and 3,790.89

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Solution

The fourth proportional to 8,722.41, 13,081.30 and 3,790.89 is: 5,685.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.41 : 13,081.30 = 3,790.89 : x
  2. Step 2: Convert to fraction form
    8,722.41/13,081.30 = 3,790.89/x
  3. Step 3: Cross multiply
    8,722.41x = 13,081.30 × 3,790.89
  4. Step 4: Simplify right side
    8,722.41x = 49,589,769.36
  5. Step 5: Solve for x
    x = 49,589,769.36/8,722.41
  6. Step 6: Final answer
    x = 5,685.33

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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.