Home / 2,558.97-3,838.45-1,021.05

Finding the Fourth Proportional to 2,558.97, 3,838.45 and 1,021.05

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Solution

The fourth proportional to 2,558.97, 3,838.45 and 1,021.05 is: 1,531.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.97 : 3,838.45 = 1,021.05 : x
  2. Step 2: Convert to fraction form
    2,558.97/3,838.45 = 1,021.05/x
  3. Step 3: Cross multiply
    2,558.97x = 3,838.45 × 1,021.05
  4. Step 4: Simplify right side
    2,558.97x = 3,919,249.37
  5. Step 5: Solve for x
    x = 3,919,249.37/2,558.97
  6. Step 6: Final answer
    x = 1,531.57

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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.