Home / 2,469.12-3,698.80-1,297.38

Finding the Fourth Proportional to 2,469.12, 3,698.80 and 1,297.38

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Solution

The fourth proportional to 2,469.12, 3,698.80 and 1,297.38 is: 1,943.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,469.12 : 3,698.80 = 1,297.38 : x
  2. Step 2: Convert to fraction form
    2,469.12/3,698.80 = 1,297.38/x
  3. Step 3: Cross multiply
    2,469.12x = 3,698.80 × 1,297.38
  4. Step 4: Simplify right side
    2,469.12x = 4,798,749.14
  5. Step 5: Solve for x
    x = 4,798,749.14/2,469.12
  6. Step 6: Final answer
    x = 1,943.51

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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.