Home / 2,828.16-4,240.08-1,800

Finding the Fourth Proportional to 2,828.16, 4,240.08 and 1,800

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Solution

The fourth proportional to 2,828.16, 4,240.08 and 1,800 is: 2,698.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.16 : 4,240.08 = 1,800 : x
  2. Step 2: Convert to fraction form
    2,828.16/4,240.08 = 1,800/x
  3. Step 3: Cross multiply
    2,828.16x = 4,240.08 × 1,800
  4. Step 4: Simplify right side
    2,828.16x = 7,632,144
  5. Step 5: Solve for x
    x = 7,632,144/2,828.16
  6. Step 6: Final answer
    x = 2,698.63

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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.