Home / 3,085.80-4,628.70-2,745.60

Finding the Fourth Proportional to 3,085.80, 4,628.70 and 2,745.60

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Solution

The fourth proportional to 3,085.80, 4,628.70 and 2,745.60 is: 4,118.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.80 : 4,628.70 = 2,745.60 : x
  2. Step 2: Convert to fraction form
    3,085.80/4,628.70 = 2,745.60/x
  3. Step 3: Cross multiply
    3,085.80x = 4,628.70 × 2,745.60
  4. Step 4: Simplify right side
    3,085.80x = 12,708,558.72
  5. Step 5: Solve for x
    x = 12,708,558.72/3,085.80
  6. Step 6: Final answer
    x = 4,118.40

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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.