Home / 2,006.18-2,768.34-1,209.38

Finding the Fourth Proportional to 2,006.18, 2,768.34 and 1,209.38

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Solution

The fourth proportional to 2,006.18, 2,768.34 and 1,209.38 is: 1,668.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006.18 : 2,768.34 = 1,209.38 : x
  2. Step 2: Convert to fraction form
    2,006.18/2,768.34 = 1,209.38/x
  3. Step 3: Cross multiply
    2,006.18x = 2,768.34 × 1,209.38
  4. Step 4: Simplify right side
    2,006.18x = 3,347,975.03
  5. Step 5: Solve for x
    x = 3,347,975.03/2,006.18
  6. Step 6: Final answer
    x = 1,668.83

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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.