Home / 1,916.89-2,876.76-1,424.44

Finding the Fourth Proportional to 1,916.89, 2,876.76 and 1,424.44

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Solution

The fourth proportional to 1,916.89, 2,876.76 and 1,424.44 is: 2,137.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.89 : 2,876.76 = 1,424.44 : x
  2. Step 2: Convert to fraction form
    1,916.89/2,876.76 = 1,424.44/x
  3. Step 3: Cross multiply
    1,916.89x = 2,876.76 × 1,424.44
  4. Step 4: Simplify right side
    1,916.89x = 4,097,757.63
  5. Step 5: Solve for x
    x = 4,097,757.63/1,916.89
  6. Step 6: Final answer
    x = 2,137.71

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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.