Home / 4,678.26-6,456.84-2,789.97

Finding the Fourth Proportional to 4,678.26, 6,456.84 and 2,789.97

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Solution

The fourth proportional to 4,678.26, 6,456.84 and 2,789.97 is: 3,850.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.26 : 6,456.84 = 2,789.97 : x
  2. Step 2: Convert to fraction form
    4,678.26/6,456.84 = 2,789.97/x
  3. Step 3: Cross multiply
    4,678.26x = 6,456.84 × 2,789.97
  4. Step 4: Simplify right side
    4,678.26x = 18,014,403.65
  5. Step 5: Solve for x
    x = 18,014,403.65/4,678.26
  6. Step 6: Final answer
    x = 3,850.66

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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.