Home / 1,972.72-2,722.20-1,133.44

Finding the Fourth Proportional to 1,972.72, 2,722.20 and 1,133.44

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Solution

The fourth proportional to 1,972.72, 2,722.20 and 1,133.44 is: 1,564.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.72 : 2,722.20 = 1,133.44 : x
  2. Step 2: Convert to fraction form
    1,972.72/2,722.20 = 1,133.44/x
  3. Step 3: Cross multiply
    1,972.72x = 2,722.20 × 1,133.44
  4. Step 4: Simplify right side
    1,972.72x = 3,085,450.37
  5. Step 5: Solve for x
    x = 3,085,450.37/1,972.72
  6. Step 6: Final answer
    x = 1,564.06

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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.