Home / 3,834.30-5,290.95-2,155.44

Finding the Fourth Proportional to 3,834.30, 5,290.95 and 2,155.44

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Solution

The fourth proportional to 3,834.30, 5,290.95 and 2,155.44 is: 2,974.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,834.30 : 5,290.95 = 2,155.44 : x
  2. Step 2: Convert to fraction form
    3,834.30/5,290.95 = 2,155.44/x
  3. Step 3: Cross multiply
    3,834.30x = 5,290.95 × 2,155.44
  4. Step 4: Simplify right side
    3,834.30x = 11,404,325.27
  5. Step 5: Solve for x
    x = 11,404,325.27/3,834.30
  6. Step 6: Final answer
    x = 2,974.29

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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.