Home / 3,097.86-4,273.11-1,902.21

Finding the Fourth Proportional to 3,097.86, 4,273.11 and 1,902.21

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Solution

The fourth proportional to 3,097.86, 4,273.11 and 1,902.21 is: 2,623.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,097.86 : 4,273.11 = 1,902.21 : x
  2. Step 2: Convert to fraction form
    3,097.86/4,273.11 = 1,902.21/x
  3. Step 3: Cross multiply
    3,097.86x = 4,273.11 × 1,902.21
  4. Step 4: Simplify right side
    3,097.86x = 8,128,352.57
  5. Step 5: Solve for x
    x = 8,128,352.57/3,097.86
  6. Step 6: Final answer
    x = 2,623.86

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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.