Home / 4,128.80-6,183.60-2,823.20

Finding the Fourth Proportional to 4,128.80, 6,183.60 and 2,823.20

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Solution

The fourth proportional to 4,128.80, 6,183.60 and 2,823.20 is: 4,228.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.80 : 6,183.60 = 2,823.20 : x
  2. Step 2: Convert to fraction form
    4,128.80/6,183.60 = 2,823.20/x
  3. Step 3: Cross multiply
    4,128.80x = 6,183.60 × 2,823.20
  4. Step 4: Simplify right side
    4,128.80x = 17,457,539.52
  5. Step 5: Solve for x
    x = 17,457,539.52/4,128.80
  6. Step 6: Final answer
    x = 4,228.24

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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.