Home / 1,223.03-1,834.83-1,087.09

Finding the Fourth Proportional to 1,223.03, 1,834.83 and 1,087.09

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Solution

The fourth proportional to 1,223.03, 1,834.83 and 1,087.09 is: 1,630.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.03 : 1,834.83 = 1,087.09 : x
  2. Step 2: Convert to fraction form
    1,223.03/1,834.83 = 1,087.09/x
  3. Step 3: Cross multiply
    1,223.03x = 1,834.83 × 1,087.09
  4. Step 4: Simplify right side
    1,223.03x = 1,994,620.76
  5. Step 5: Solve for x
    x = 1,994,620.76/1,223.03
  6. Step 6: Final answer
    x = 1,630.88

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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.