Home / 1,269.96-1,905.23-448.25

Finding the Fourth Proportional to 1,269.96, 1,905.23 and 448.25

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Solution

The fourth proportional to 1,269.96, 1,905.23 and 448.25 is: 672.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269.96 : 1,905.23 = 448.25 : x
  2. Step 2: Convert to fraction form
    1,269.96/1,905.23 = 448.25/x
  3. Step 3: Cross multiply
    1,269.96x = 1,905.23 × 448.25
  4. Step 4: Simplify right side
    1,269.96x = 854,007.58
  5. Step 5: Solve for x
    x = 854,007.58/1,269.96
  6. Step 6: Final answer
    x = 672.47

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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.