Home / 1,223.15-1,836.54-1,180.62

Finding the Fourth Proportional to 1,223.15, 1,836.54 and 1,180.62

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Solution

The fourth proportional to 1,223.15, 1,836.54 and 1,180.62 is: 1,772.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.15 : 1,836.54 = 1,180.62 : x
  2. Step 2: Convert to fraction form
    1,223.15/1,836.54 = 1,180.62/x
  3. Step 3: Cross multiply
    1,223.15x = 1,836.54 × 1,180.62
  4. Step 4: Simplify right side
    1,223.15x = 2,168,255.85
  5. Step 5: Solve for x
    x = 2,168,255.85/1,223.15
  6. Step 6: Final answer
    x = 1,772.69

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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.