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Finding the Fourth Proportional to 2,542.88, 3,814.34 and 1,244

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Solution

The fourth proportional to 2,542.88, 3,814.34 and 1,244 is: 1,866.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,542.88 : 3,814.34 = 1,244 : x
  2. Step 2: Convert to fraction form
    2,542.88/3,814.34 = 1,244/x
  3. Step 3: Cross multiply
    2,542.88x = 3,814.34 × 1,244
  4. Step 4: Simplify right side
    2,542.88x = 4,745,038.96
  5. Step 5: Solve for x
    x = 4,745,038.96/2,542.88
  6. Step 6: Final answer
    x = 1,866.01

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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.