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Finding the Fourth Proportional to 1,249.90, 1,723.82 and 895.89

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Solution

The fourth proportional to 1,249.90, 1,723.82 and 895.89 is: 1,235.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249.90 : 1,723.82 = 895.89 : x
  2. Step 2: Convert to fraction form
    1,249.90/1,723.82 = 895.89/x
  3. Step 3: Cross multiply
    1,249.90x = 1,723.82 × 895.89
  4. Step 4: Simplify right side
    1,249.90x = 1,544,355.08
  5. Step 5: Solve for x
    x = 1,544,355.08/1,249.90
  6. Step 6: Final answer
    x = 1,235.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.