Home / 3,882.09-5,357.33-2,113.71

Finding the Fourth Proportional to 3,882.09, 5,357.33 and 2,113.71

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Solution

The fourth proportional to 3,882.09, 5,357.33 and 2,113.71 is: 2,916.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.09 : 5,357.33 = 2,113.71 : x
  2. Step 2: Convert to fraction form
    3,882.09/5,357.33 = 2,113.71/x
  3. Step 3: Cross multiply
    3,882.09x = 5,357.33 × 2,113.71
  4. Step 4: Simplify right side
    3,882.09x = 11,323,819.26
  5. Step 5: Solve for x
    x = 11,323,819.26/3,882.09
  6. Step 6: Final answer
    x = 2,916.94

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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.