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Finding the Fourth Proportional to 1,249.43, 1,872.32 and 884.01

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Solution

The fourth proportional to 1,249.43, 1,872.32 and 884.01 is: 1,324.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249.43 : 1,872.32 = 884.01 : x
  2. Step 2: Convert to fraction form
    1,249.43/1,872.32 = 884.01/x
  3. Step 3: Cross multiply
    1,249.43x = 1,872.32 × 884.01
  4. Step 4: Simplify right side
    1,249.43x = 1,655,152.20
  5. Step 5: Solve for x
    x = 1,655,152.20/1,249.43
  6. Step 6: Final answer
    x = 1,324.73

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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.