Home / 2,698.12-3,721.62-1,765

Finding the Fourth Proportional to 2,698.12, 3,721.62 and 1,765

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Solution

The fourth proportional to 2,698.12, 3,721.62 and 1,765 is: 2,434.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698.12 : 3,721.62 = 1,765 : x
  2. Step 2: Convert to fraction form
    2,698.12/3,721.62 = 1,765/x
  3. Step 3: Cross multiply
    2,698.12x = 3,721.62 × 1,765
  4. Step 4: Simplify right side
    2,698.12x = 6,568,659.30
  5. Step 5: Solve for x
    x = 6,568,659.30/2,698.12
  6. Step 6: Final answer
    x = 2,434.53

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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.