Home / 2,206.56-3,306.60-1,338.78

Finding the Fourth Proportional to 2,206.56, 3,306.60 and 1,338.78

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Solution

The fourth proportional to 2,206.56, 3,306.60 and 1,338.78 is: 2,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.56 : 3,306.60 = 1,338.78 : x
  2. Step 2: Convert to fraction form
    2,206.56/3,306.60 = 1,338.78/x
  3. Step 3: Cross multiply
    2,206.56x = 3,306.60 × 1,338.78
  4. Step 4: Simplify right side
    2,206.56x = 4,426,809.95
  5. Step 5: Solve for x
    x = 4,426,809.95/2,206.56
  6. Step 6: Final answer
    x = 2,006.20

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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.