Home / 4,879.80-6,735.32-2,785.12

Finding the Fourth Proportional to 4,879.80, 6,735.32 and 2,785.12

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Solution

The fourth proportional to 4,879.80, 6,735.32 and 2,785.12 is: 3,844.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.80 : 6,735.32 = 2,785.12 : x
  2. Step 2: Convert to fraction form
    4,879.80/6,735.32 = 2,785.12/x
  3. Step 3: Cross multiply
    4,879.80x = 6,735.32 × 2,785.12
  4. Step 4: Simplify right side
    4,879.80x = 18,758,674.44
  5. Step 5: Solve for x
    x = 18,758,674.44/4,879.80
  6. Step 6: Final answer
    x = 3,844.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.