Home / 3,841.63-5,757.76-1,991.73

Finding the Fourth Proportional to 3,841.63, 5,757.76 and 1,991.73

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Solution

The fourth proportional to 3,841.63, 5,757.76 and 1,991.73 is: 2,985.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,841.63 : 5,757.76 = 1,991.73 : x
  2. Step 2: Convert to fraction form
    3,841.63/5,757.76 = 1,991.73/x
  3. Step 3: Cross multiply
    3,841.63x = 5,757.76 × 1,991.73
  4. Step 4: Simplify right side
    3,841.63x = 11,467,903.32
  5. Step 5: Solve for x
    x = 11,467,903.32/3,841.63
  6. Step 6: Final answer
    x = 2,985.17

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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.