Home / 1,231.37-1,847.12-1,180.49

Finding the Fourth Proportional to 1,231.37, 1,847.12 and 1,180.49

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Solution

The fourth proportional to 1,231.37, 1,847.12 and 1,180.49 is: 1,770.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.37 : 1,847.12 = 1,180.49 : x
  2. Step 2: Convert to fraction form
    1,231.37/1,847.12 = 1,180.49/x
  3. Step 3: Cross multiply
    1,231.37x = 1,847.12 × 1,180.49
  4. Step 4: Simplify right side
    1,231.37x = 2,180,500.79
  5. Step 5: Solve for x
    x = 2,180,500.79/1,231.37
  6. Step 6: Final answer
    x = 1,770.79

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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.