Home / 1,916.19-2,873.62-683.43

Finding the Fourth Proportional to 1,916.19, 2,873.62 and 683.43

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Solution

The fourth proportional to 1,916.19, 2,873.62 and 683.43 is: 1,024.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.19 : 2,873.62 = 683.43 : x
  2. Step 2: Convert to fraction form
    1,916.19/2,873.62 = 683.43/x
  3. Step 3: Cross multiply
    1,916.19x = 2,873.62 × 683.43
  4. Step 4: Simplify right side
    1,916.19x = 1,963,918.12
  5. Step 5: Solve for x
    x = 1,963,918.12/1,916.19
  6. Step 6: Final answer
    x = 1,024.91

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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.