Home / 2,894.91-4,022.68-2,864.80

Finding the Fourth Proportional to 2,894.91, 4,022.68 and 2,864.80

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Solution

The fourth proportional to 2,894.91, 4,022.68 and 2,864.80 is: 3,980.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.91 : 4,022.68 = 2,864.80 : x
  2. Step 2: Convert to fraction form
    2,894.91/4,022.68 = 2,864.80/x
  3. Step 3: Cross multiply
    2,894.91x = 4,022.68 × 2,864.80
  4. Step 4: Simplify right side
    2,894.91x = 11,524,173.66
  5. Step 5: Solve for x
    x = 11,524,173.66/2,894.91
  6. Step 6: Final answer
    x = 3,980.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.