Home / 3,883.68-5,354.82-3,172.89

Finding the Fourth Proportional to 3,883.68, 5,354.82 and 3,172.89

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Solution

The fourth proportional to 3,883.68, 5,354.82 and 3,172.89 is: 4,374.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.68 : 5,354.82 = 3,172.89 : x
  2. Step 2: Convert to fraction form
    3,883.68/5,354.82 = 3,172.89/x
  3. Step 3: Cross multiply
    3,883.68x = 5,354.82 × 3,172.89
  4. Step 4: Simplify right side
    3,883.68x = 16,990,254.83
  5. Step 5: Solve for x
    x = 16,990,254.83/3,883.68
  6. Step 6: Final answer
    x = 4,374.78

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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.