Home / 1,926.43-2,653.09-1,920.96

Finding the Fourth Proportional to 1,926.43, 2,653.09 and 1,920.96

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Solution

The fourth proportional to 1,926.43, 2,653.09 and 1,920.96 is: 2,645.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.43 : 2,653.09 = 1,920.96 : x
  2. Step 2: Convert to fraction form
    1,926.43/2,653.09 = 1,920.96/x
  3. Step 3: Cross multiply
    1,926.43x = 2,653.09 × 1,920.96
  4. Step 4: Simplify right side
    1,926.43x = 5,096,474.96
  5. Step 5: Solve for x
    x = 5,096,474.96/1,926.43
  6. Step 6: Final answer
    x = 2,645.56

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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.