Home / 2,954.40-4,431.62-1,105.49

Finding the Fourth Proportional to 2,954.40, 4,431.62 and 1,105.49

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Solution

The fourth proportional to 2,954.40, 4,431.62 and 1,105.49 is: 1,658.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,954.40 : 4,431.62 = 1,105.49 : x
  2. Step 2: Convert to fraction form
    2,954.40/4,431.62 = 1,105.49/x
  3. Step 3: Cross multiply
    2,954.40x = 4,431.62 × 1,105.49
  4. Step 4: Simplify right side
    2,954.40x = 4,899,083.91
  5. Step 5: Solve for x
    x = 4,899,083.91/2,954.40
  6. Step 6: Final answer
    x = 1,658.23

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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.