Home / 8,081.41-12,122.75-2,238.02

Finding the Fourth Proportional to 8,081.41, 12,122.75 and 2,238.02

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Solution

The fourth proportional to 8,081.41, 12,122.75 and 2,238.02 is: 3,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.41 : 12,122.75 = 2,238.02 : x
  2. Step 2: Convert to fraction form
    8,081.41/12,122.75 = 2,238.02/x
  3. Step 3: Cross multiply
    8,081.41x = 12,122.75 × 2,238.02
  4. Step 4: Simplify right side
    8,081.41x = 27,130,956.96
  5. Step 5: Solve for x
    x = 27,130,956.96/8,081.41
  6. Step 6: Final answer
    x = 3,357.21

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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.