Home / 8,228.46-12,343.72-2,680.32

Finding the Fourth Proportional to 8,228.46, 12,343.72 and 2,680.32

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Solution

The fourth proportional to 8,228.46, 12,343.72 and 2,680.32 is: 4,020.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228.46 : 12,343.72 = 2,680.32 : x
  2. Step 2: Convert to fraction form
    8,228.46/12,343.72 = 2,680.32/x
  3. Step 3: Cross multiply
    8,228.46x = 12,343.72 × 2,680.32
  4. Step 4: Simplify right side
    8,228.46x = 33,085,119.59
  5. Step 5: Solve for x
    x = 33,085,119.59/8,228.46
  6. Step 6: Final answer
    x = 4,020.82

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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.