Home / 3,207.21-4,427.72-2,013.44

Finding the Fourth Proportional to 3,207.21, 4,427.72 and 2,013.44

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Solution

The fourth proportional to 3,207.21, 4,427.72 and 2,013.44 is: 2,779.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.21 : 4,427.72 = 2,013.44 : x
  2. Step 2: Convert to fraction form
    3,207.21/4,427.72 = 2,013.44/x
  3. Step 3: Cross multiply
    3,207.21x = 4,427.72 × 2,013.44
  4. Step 4: Simplify right side
    3,207.21x = 8,914,923.90
  5. Step 5: Solve for x
    x = 8,914,923.90/3,207.21
  6. Step 6: Final answer
    x = 2,779.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.