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Finding the Fourth Proportional to 1,453.09, 2,005.31 and 893.89

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Solution

The fourth proportional to 1,453.09, 2,005.31 and 893.89 is: 1,233.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.09 : 2,005.31 = 893.89 : x
  2. Step 2: Convert to fraction form
    1,453.09/2,005.31 = 893.89/x
  3. Step 3: Cross multiply
    1,453.09x = 2,005.31 × 893.89
  4. Step 4: Simplify right side
    1,453.09x = 1,792,512.06
  5. Step 5: Solve for x
    x = 1,792,512.06/1,453.09
  6. Step 6: Final answer
    x = 1,233.59

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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.