Home / 1,236.82-1,705.30-941.58

Finding the Fourth Proportional to 1,236.82, 1,705.30 and 941.58

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Solution

The fourth proportional to 1,236.82, 1,705.30 and 941.58 is: 1,298.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.82 : 1,705.30 = 941.58 : x
  2. Step 2: Convert to fraction form
    1,236.82/1,705.30 = 941.58/x
  3. Step 3: Cross multiply
    1,236.82x = 1,705.30 × 941.58
  4. Step 4: Simplify right side
    1,236.82x = 1,605,676.37
  5. Step 5: Solve for x
    x = 1,605,676.37/1,236.82
  6. Step 6: Final answer
    x = 1,298.23

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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.