Home / 3,155.03-4,735.07-1,423.79

Finding the Fourth Proportional to 3,155.03, 4,735.07 and 1,423.79

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Solution

The fourth proportional to 3,155.03, 4,735.07 and 1,423.79 is: 2,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.03 : 4,735.07 = 1,423.79 : x
  2. Step 2: Convert to fraction form
    3,155.03/4,735.07 = 1,423.79/x
  3. Step 3: Cross multiply
    3,155.03x = 4,735.07 × 1,423.79
  4. Step 4: Simplify right side
    3,155.03x = 6,741,745.32
  5. Step 5: Solve for x
    x = 6,741,745.32/3,155.03
  6. Step 6: Final answer
    x = 2,136.82

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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.