Home / 2,808.57-4,211.42-1,511.61

Finding the Fourth Proportional to 2,808.57, 4,211.42 and 1,511.61

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Solution

The fourth proportional to 2,808.57, 4,211.42 and 1,511.61 is: 2,266.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.57 : 4,211.42 = 1,511.61 : x
  2. Step 2: Convert to fraction form
    2,808.57/4,211.42 = 1,511.61/x
  3. Step 3: Cross multiply
    2,808.57x = 4,211.42 × 1,511.61
  4. Step 4: Simplify right side
    2,808.57x = 6,366,017.03
  5. Step 5: Solve for x
    x = 6,366,017.03/2,808.57
  6. Step 6: Final answer
    x = 2,266.64

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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.