Home / 1,916.08-2,874.24-683.36

Finding the Fourth Proportional to 1,916.08, 2,874.24 and 683.36

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Solution

The fourth proportional to 1,916.08, 2,874.24 and 683.36 is: 1,025.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.08 : 2,874.24 = 683.36 : x
  2. Step 2: Convert to fraction form
    1,916.08/2,874.24 = 683.36/x
  3. Step 3: Cross multiply
    1,916.08x = 2,874.24 × 683.36
  4. Step 4: Simplify right side
    1,916.08x = 1,964,140.65
  5. Step 5: Solve for x
    x = 1,964,140.65/1,916.08
  6. Step 6: Final answer
    x = 1,025.08

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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.