Home / 2,006.20-2,768.36-1,121.98

Finding the Fourth Proportional to 2,006.20, 2,768.36 and 1,121.98

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Solution

The fourth proportional to 2,006.20, 2,768.36 and 1,121.98 is: 1,548.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006.20 : 2,768.36 = 1,121.98 : x
  2. Step 2: Convert to fraction form
    2,006.20/2,768.36 = 1,121.98/x
  3. Step 3: Cross multiply
    2,006.20x = 2,768.36 × 1,121.98
  4. Step 4: Simplify right side
    2,006.20x = 3,106,044.55
  5. Step 5: Solve for x
    x = 3,106,044.55/2,006.20
  6. Step 6: Final answer
    x = 1,548.22

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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.