Home / 2,174.24-3,245.62-1,911.51

Finding the Fourth Proportional to 2,174.24, 3,245.62 and 1,911.51

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Solution

The fourth proportional to 2,174.24, 3,245.62 and 1,911.51 is: 2,853.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.24 : 3,245.62 = 1,911.51 : x
  2. Step 2: Convert to fraction form
    2,174.24/3,245.62 = 1,911.51/x
  3. Step 3: Cross multiply
    2,174.24x = 3,245.62 × 1,911.51
  4. Step 4: Simplify right side
    2,174.24x = 6,204,035.09
  5. Step 5: Solve for x
    x = 6,204,035.09/2,174.24
  6. Step 6: Final answer
    x = 2,853.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.