Home / 3,874.20-5,808.78-2,208.36

Finding the Fourth Proportional to 3,874.20, 5,808.78 and 2,208.36

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Solution

The fourth proportional to 3,874.20, 5,808.78 and 2,208.36 is: 3,311.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.20 : 5,808.78 = 2,208.36 : x
  2. Step 2: Convert to fraction form
    3,874.20/5,808.78 = 2,208.36/x
  3. Step 3: Cross multiply
    3,874.20x = 5,808.78 × 2,208.36
  4. Step 4: Simplify right side
    3,874.20x = 12,827,877.40
  5. Step 5: Solve for x
    x = 12,827,877.40/3,874.20
  6. Step 6: Final answer
    x = 3,311.10

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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.