Home / 1,228.48-1,845.12-1,183.36

Finding the Fourth Proportional to 1,228.48, 1,845.12 and 1,183.36

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Solution

The fourth proportional to 1,228.48, 1,845.12 and 1,183.36 is: 1,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228.48 : 1,845.12 = 1,183.36 : x
  2. Step 2: Convert to fraction form
    1,228.48/1,845.12 = 1,183.36/x
  3. Step 3: Cross multiply
    1,228.48x = 1,845.12 × 1,183.36
  4. Step 4: Simplify right side
    1,228.48x = 2,183,441.20
  5. Step 5: Solve for x
    x = 2,183,441.20/1,228.48
  6. Step 6: Final answer
    x = 1,777.35

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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.