Home / 3,916.14-5,404.17-2,123.52

Finding the Fourth Proportional to 3,916.14, 5,404.17 and 2,123.52

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Solution

The fourth proportional to 3,916.14, 5,404.17 and 2,123.52 is: 2,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.14 : 5,404.17 = 2,123.52 : x
  2. Step 2: Convert to fraction form
    3,916.14/5,404.17 = 2,123.52/x
  3. Step 3: Cross multiply
    3,916.14x = 5,404.17 × 2,123.52
  4. Step 4: Simplify right side
    3,916.14x = 11,475,863.08
  5. Step 5: Solve for x
    x = 11,475,863.08/3,916.14
  6. Step 6: Final answer
    x = 2,930.40

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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.