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Finding the Fourth Proportional to 1,368.96, 1,893.96 and 1,314.96

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Solution

The fourth proportional to 1,368.96, 1,893.96 and 1,314.96 is: 1,819.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.96 : 1,893.96 = 1,314.96 : x
  2. Step 2: Convert to fraction form
    1,368.96/1,893.96 = 1,314.96/x
  3. Step 3: Cross multiply
    1,368.96x = 1,893.96 × 1,314.96
  4. Step 4: Simplify right side
    1,368.96x = 2,490,481.64
  5. Step 5: Solve for x
    x = 2,490,481.64/1,368.96
  6. Step 6: Final answer
    x = 1,819.25

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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.