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Finding the Fourth Proportional to 3,308.72, 4,963.01 and 1,333.80

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Solution

The fourth proportional to 3,308.72, 4,963.01 and 1,333.80 is: 2,000.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.72 : 4,963.01 = 1,333.80 : x
  2. Step 2: Convert to fraction form
    3,308.72/4,963.01 = 1,333.80/x
  3. Step 3: Cross multiply
    3,308.72x = 4,963.01 × 1,333.80
  4. Step 4: Simplify right side
    3,308.72x = 6,619,656.07
  5. Step 5: Solve for x
    x = 6,619,656.07/3,308.72
  6. Step 6: Final answer
    x = 2,000.67

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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.