Home / 4,879.36-6,734.10-2,783.89

Finding the Fourth Proportional to 4,879.36, 6,734.10 and 2,783.89

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Solution

The fourth proportional to 4,879.36, 6,734.10 and 2,783.89 is: 3,842.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.36 : 6,734.10 = 2,783.89 : x
  2. Step 2: Convert to fraction form
    4,879.36/6,734.10 = 2,783.89/x
  3. Step 3: Cross multiply
    4,879.36x = 6,734.10 × 2,783.89
  4. Step 4: Simplify right side
    4,879.36x = 18,746,993.65
  5. Step 5: Solve for x
    x = 18,746,993.65/4,879.36
  6. Step 6: Final answer
    x = 3,842.10

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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.