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Finding the Fourth Proportional to 2,714.67, 4,072.02 and 662.67

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Solution

The fourth proportional to 2,714.67, 4,072.02 and 662.67 is: 994.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,714.67 : 4,072.02 = 662.67 : x
  2. Step 2: Convert to fraction form
    2,714.67/4,072.02 = 662.67/x
  3. Step 3: Cross multiply
    2,714.67x = 4,072.02 × 662.67
  4. Step 4: Simplify right side
    2,714.67x = 2,698,405.49
  5. Step 5: Solve for x
    x = 2,698,405.49/2,714.67
  6. Step 6: Final answer
    x = 994.01

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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.