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Finding the Fourth Proportional to 2,872.66, 4,311.16 and 2,302.42

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Solution

The fourth proportional to 2,872.66, 4,311.16 and 2,302.42 is: 3,455.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.66 : 4,311.16 = 2,302.42 : x
  2. Step 2: Convert to fraction form
    2,872.66/4,311.16 = 2,302.42/x
  3. Step 3: Cross multiply
    2,872.66x = 4,311.16 × 2,302.42
  4. Step 4: Simplify right side
    2,872.66x = 9,926,101.01
  5. Step 5: Solve for x
    x = 9,926,101.01/2,872.66
  6. Step 6: Final answer
    x = 3,455.37

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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.