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Finding the Fourth Proportional to 1,262.98, 1,893.86 and 441.30

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Solution

The fourth proportional to 1,262.98, 1,893.86 and 441.30 is: 661.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262.98 : 1,893.86 = 441.30 : x
  2. Step 2: Convert to fraction form
    1,262.98/1,893.86 = 441.30/x
  3. Step 3: Cross multiply
    1,262.98x = 1,893.86 × 441.30
  4. Step 4: Simplify right side
    1,262.98x = 835,760.42
  5. Step 5: Solve for x
    x = 835,760.42/1,262.98
  6. Step 6: Final answer
    x = 661.74

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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.