Home / 3,916.52-5,878.62-1,865.96

Finding the Fourth Proportional to 3,916.52, 5,878.62 and 1,865.96

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Solution

The fourth proportional to 3,916.52, 5,878.62 and 1,865.96 is: 2,800.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.52 : 5,878.62 = 1,865.96 : x
  2. Step 2: Convert to fraction form
    3,916.52/5,878.62 = 1,865.96/x
  3. Step 3: Cross multiply
    3,916.52x = 5,878.62 × 1,865.96
  4. Step 4: Simplify right side
    3,916.52x = 10,969,269.78
  5. Step 5: Solve for x
    x = 10,969,269.78/3,916.52
  6. Step 6: Final answer
    x = 2,800.77

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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.