Home / 3,817.13-5,268.06-2,138.61

Finding the Fourth Proportional to 3,817.13, 5,268.06 and 2,138.61

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Solution

The fourth proportional to 3,817.13, 5,268.06 and 2,138.61 is: 2,951.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,817.13 : 5,268.06 = 2,138.61 : x
  2. Step 2: Convert to fraction form
    3,817.13/5,268.06 = 2,138.61/x
  3. Step 3: Cross multiply
    3,817.13x = 5,268.06 × 2,138.61
  4. Step 4: Simplify right side
    3,817.13x = 11,266,325.80
  5. Step 5: Solve for x
    x = 11,266,325.80/3,817.13
  6. Step 6: Final answer
    x = 2,951.52

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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.