Home / 3,916.86-5,876.26-1,143.56

Finding the Fourth Proportional to 3,916.86, 5,876.26 and 1,143.56

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Solution

The fourth proportional to 3,916.86, 5,876.26 and 1,143.56 is: 1,715.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.86 : 5,876.26 = 1,143.56 : x
  2. Step 2: Convert to fraction form
    3,916.86/5,876.26 = 1,143.56/x
  3. Step 3: Cross multiply
    3,916.86x = 5,876.26 × 1,143.56
  4. Step 4: Simplify right side
    3,916.86x = 6,719,855.89
  5. Step 5: Solve for x
    x = 6,719,855.89/3,916.86
  6. Step 6: Final answer
    x = 1,715.62

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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.