Home / 3,916.36-5,404.57-2,147.92

Finding the Fourth Proportional to 3,916.36, 5,404.57 and 2,147.92

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Solution

The fourth proportional to 3,916.36, 5,404.57 and 2,147.92 is: 2,964.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.36 : 5,404.57 = 2,147.92 : x
  2. Step 2: Convert to fraction form
    3,916.36/5,404.57 = 2,147.92/x
  3. Step 3: Cross multiply
    3,916.36x = 5,404.57 × 2,147.92
  4. Step 4: Simplify right side
    3,916.36x = 11,608,583.99
  5. Step 5: Solve for x
    x = 11,608,583.99/3,916.36
  6. Step 6: Final answer
    x = 2,964.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.