Home / 1,623.53-2,239.26-1,399.88

Finding the Fourth Proportional to 1,623.53, 2,239.26 and 1,399.88

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Solution

The fourth proportional to 1,623.53, 2,239.26 and 1,399.88 is: 1,930.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.53 : 2,239.26 = 1,399.88 : x
  2. Step 2: Convert to fraction form
    1,623.53/2,239.26 = 1,399.88/x
  3. Step 3: Cross multiply
    1,623.53x = 2,239.26 × 1,399.88
  4. Step 4: Simplify right side
    1,623.53x = 3,134,684.09
  5. Step 5: Solve for x
    x = 3,134,684.09/1,623.53
  6. Step 6: Final answer
    x = 1,930.79

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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.