Home / 3,800.25-5,695.70-2,698.65

Finding the Fourth Proportional to 3,800.25, 5,695.70 and 2,698.65

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Solution

The fourth proportional to 3,800.25, 5,695.70 and 2,698.65 is: 4,044.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.25 : 5,695.70 = 2,698.65 : x
  2. Step 2: Convert to fraction form
    3,800.25/5,695.70 = 2,698.65/x
  3. Step 3: Cross multiply
    3,800.25x = 5,695.70 × 2,698.65
  4. Step 4: Simplify right side
    3,800.25x = 15,370,687.31
  5. Step 5: Solve for x
    x = 15,370,687.31/3,800.25
  6. Step 6: Final answer
    x = 4,044.65

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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.