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Finding the Fourth Proportional to 1,241.48, 1,863.44 and 946.23

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Solution

The fourth proportional to 1,241.48, 1,863.44 and 946.23 is: 1,420.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241.48 : 1,863.44 = 946.23 : x
  2. Step 2: Convert to fraction form
    1,241.48/1,863.44 = 946.23/x
  3. Step 3: Cross multiply
    1,241.48x = 1,863.44 × 946.23
  4. Step 4: Simplify right side
    1,241.48x = 1,763,238.10
  5. Step 5: Solve for x
    x = 1,763,238.10/1,241.48
  6. Step 6: Final answer
    x = 1,420.28

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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.