Home / 3,213.62-4,820.43-1,677.62

Finding the Fourth Proportional to 3,213.62, 4,820.43 and 1,677.62

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Solution

The fourth proportional to 3,213.62, 4,820.43 and 1,677.62 is: 2,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.62 : 4,820.43 = 1,677.62 : x
  2. Step 2: Convert to fraction form
    3,213.62/4,820.43 = 1,677.62/x
  3. Step 3: Cross multiply
    3,213.62x = 4,820.43 × 1,677.62
  4. Step 4: Simplify right side
    3,213.62x = 8,086,849.78
  5. Step 5: Solve for x
    x = 8,086,849.78/3,213.62
  6. Step 6: Final answer
    x = 2,516.43

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1.5x scale

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.