Home / 3,255.25-4,877.94-2,155.68

Finding the Fourth Proportional to 3,255.25, 4,877.94 and 2,155.68

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Solution

The fourth proportional to 3,255.25, 4,877.94 and 2,155.68 is: 3,230.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.25 : 4,877.94 = 2,155.68 : x
  2. Step 2: Convert to fraction form
    3,255.25/4,877.94 = 2,155.68/x
  3. Step 3: Cross multiply
    3,255.25x = 4,877.94 × 2,155.68
  4. Step 4: Simplify right side
    3,255.25x = 10,515,277.70
  5. Step 5: Solve for x
    x = 10,515,277.70/3,255.25
  6. Step 6: Final answer
    x = 3,230.25

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1.5x scale

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.