Home / 2,768.58-4,153.14-1,209.06

Finding the Fourth Proportional to 2,768.58, 4,153.14 and 1,209.06

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Solution

The fourth proportional to 2,768.58, 4,153.14 and 1,209.06 is: 1,813.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.58 : 4,153.14 = 1,209.06 : x
  2. Step 2: Convert to fraction form
    2,768.58/4,153.14 = 1,209.06/x
  3. Step 3: Cross multiply
    2,768.58x = 4,153.14 × 1,209.06
  4. Step 4: Simplify right side
    2,768.58x = 5,021,395.45
  5. Step 5: Solve for x
    x = 5,021,395.45/2,768.58
  6. Step 6: Final answer
    x = 1,813.71

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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.