Home / 4,405.87-6,609.41-1,808.20

Finding the Fourth Proportional to 4,405.87, 6,609.41 and 1,808.20

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Solution

The fourth proportional to 4,405.87, 6,609.41 and 1,808.20 is: 2,712.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,405.87 : 6,609.41 = 1,808.20 : x
  2. Step 2: Convert to fraction form
    4,405.87/6,609.41 = 1,808.20/x
  3. Step 3: Cross multiply
    4,405.87x = 6,609.41 × 1,808.20
  4. Step 4: Simplify right side
    4,405.87x = 11,951,135.16
  5. Step 5: Solve for x
    x = 11,951,135.16/4,405.87
  6. Step 6: Final answer
    x = 2,712.55

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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.