Home / 2,006.03-2,768.48-1,121.78

Finding the Fourth Proportional to 2,006.03, 2,768.48 and 1,121.78

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Solution

The fourth proportional to 2,006.03, 2,768.48 and 1,121.78 is: 1,548.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006.03 : 2,768.48 = 1,121.78 : x
  2. Step 2: Convert to fraction form
    2,006.03/2,768.48 = 1,121.78/x
  3. Step 3: Cross multiply
    2,006.03x = 2,768.48 × 1,121.78
  4. Step 4: Simplify right side
    2,006.03x = 3,105,631.01
  5. Step 5: Solve for x
    x = 3,105,631.01/2,006.03
  6. Step 6: Final answer
    x = 1,548.15

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1.5x scale

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.