Home / 3,212.25-4,432.94-1,815.03

Finding the Fourth Proportional to 3,212.25, 4,432.94 and 1,815.03

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Solution

The fourth proportional to 3,212.25, 4,432.94 and 1,815.03 is: 2,504.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.25 : 4,432.94 = 1,815.03 : x
  2. Step 2: Convert to fraction form
    3,212.25/4,432.94 = 1,815.03/x
  3. Step 3: Cross multiply
    3,212.25x = 4,432.94 × 1,815.03
  4. Step 4: Simplify right side
    3,212.25x = 8,045,910.01
  5. Step 5: Solve for x
    x = 8,045,910.01/3,212.25
  6. Step 6: Final answer
    x = 2,504.76

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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.