Home / 3,183.86-4,772.40-1,208.58

Finding the Fourth Proportional to 3,183.86, 4,772.40 and 1,208.58

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Solution

The fourth proportional to 3,183.86, 4,772.40 and 1,208.58 is: 1,811.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.86 : 4,772.40 = 1,208.58 : x
  2. Step 2: Convert to fraction form
    3,183.86/4,772.40 = 1,208.58/x
  3. Step 3: Cross multiply
    3,183.86x = 4,772.40 × 1,208.58
  4. Step 4: Simplify right side
    3,183.86x = 5,767,827.19
  5. Step 5: Solve for x
    x = 5,767,827.19/3,183.86
  6. Step 6: Final answer
    x = 1,811.58

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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.