Home / 3,916.44-5,404.70-2,123.92

Finding the Fourth Proportional to 3,916.44, 5,404.70 and 2,123.92

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Solution

The fourth proportional to 3,916.44, 5,404.70 and 2,123.92 is: 2,931.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.44 : 5,404.70 = 2,123.92 : x
  2. Step 2: Convert to fraction form
    3,916.44/5,404.70 = 2,123.92/x
  3. Step 3: Cross multiply
    3,916.44x = 5,404.70 × 2,123.92
  4. Step 4: Simplify right side
    3,916.44x = 11,479,150.42
  5. Step 5: Solve for x
    x = 11,479,150.42/3,916.44
  6. Step 6: Final answer
    x = 2,931.02

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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.