Home / 3,877.22-5,815.87-1,412.06

Finding the Fourth Proportional to 3,877.22, 5,815.87 and 1,412.06

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Solution

The fourth proportional to 3,877.22, 5,815.87 and 1,412.06 is: 2,118.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.22 : 5,815.87 = 1,412.06 : x
  2. Step 2: Convert to fraction form
    3,877.22/5,815.87 = 1,412.06/x
  3. Step 3: Cross multiply
    3,877.22x = 5,815.87 × 1,412.06
  4. Step 4: Simplify right side
    3,877.22x = 8,212,324.78
  5. Step 5: Solve for x
    x = 8,212,324.78/3,877.22
  6. Step 6: Final answer
    x = 2,118.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.