Home / 2,876.78-4,315.97-1,028.09

Finding the Fourth Proportional to 2,876.78, 4,315.97 and 1,028.09

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Solution

The fourth proportional to 2,876.78, 4,315.97 and 1,028.09 is: 1,542.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.78 : 4,315.97 = 1,028.09 : x
  2. Step 2: Convert to fraction form
    2,876.78/4,315.97 = 1,028.09/x
  3. Step 3: Cross multiply
    2,876.78x = 4,315.97 × 1,028.09
  4. Step 4: Simplify right side
    2,876.78x = 4,437,213.17
  5. Step 5: Solve for x
    x = 4,437,213.17/2,876.78
  6. Step 6: Final answer
    x = 1,542.42

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1.5x scale

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.