Home / 3,106.11-4,662.81-1,808.49

Finding the Fourth Proportional to 3,106.11, 4,662.81 and 1,808.49

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Solution

The fourth proportional to 3,106.11, 4,662.81 and 1,808.49 is: 2,714.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.11 : 4,662.81 = 1,808.49 : x
  2. Step 2: Convert to fraction form
    3,106.11/4,662.81 = 1,808.49/x
  3. Step 3: Cross multiply
    3,106.11x = 4,662.81 × 1,808.49
  4. Step 4: Simplify right side
    3,106.11x = 8,432,645.26
  5. Step 5: Solve for x
    x = 8,432,645.26/3,106.11
  6. Step 6: Final answer
    x = 2,714.86

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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.