Home / 2,779.97-4,172.81-2,170.44

Finding the Fourth Proportional to 2,779.97, 4,172.81 and 2,170.44

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Solution

The fourth proportional to 2,779.97, 4,172.81 and 2,170.44 is: 3,257.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.97 : 4,172.81 = 2,170.44 : x
  2. Step 2: Convert to fraction form
    2,779.97/4,172.81 = 2,170.44/x
  3. Step 3: Cross multiply
    2,779.97x = 4,172.81 × 2,170.44
  4. Step 4: Simplify right side
    2,779.97x = 9,056,822.88
  5. Step 5: Solve for x
    x = 9,056,822.88/2,779.97
  6. Step 6: Final answer
    x = 3,257.89

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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.