Home / 1,916.29-2,874.42-1,266.87

Finding the Fourth Proportional to 1,916.29, 2,874.42 and 1,266.87

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Solution

The fourth proportional to 1,916.29, 2,874.42 and 1,266.87 is: 1,900.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.29 : 2,874.42 = 1,266.87 : x
  2. Step 2: Convert to fraction form
    1,916.29/2,874.42 = 1,266.87/x
  3. Step 3: Cross multiply
    1,916.29x = 2,874.42 × 1,266.87
  4. Step 4: Simplify right side
    1,916.29x = 3,641,516.47
  5. Step 5: Solve for x
    x = 3,641,516.47/1,916.29
  6. Step 6: Final answer
    x = 1,900.30

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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.