Home / 1,996.80-3,000.06-1,131.72

Finding the Fourth Proportional to 1,996.80, 3,000.06 and 1,131.72

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Solution

The fourth proportional to 1,996.80, 3,000.06 and 1,131.72 is: 1,700.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.80 : 3,000.06 = 1,131.72 : x
  2. Step 2: Convert to fraction form
    1,996.80/3,000.06 = 1,131.72/x
  3. Step 3: Cross multiply
    1,996.80x = 3,000.06 × 1,131.72
  4. Step 4: Simplify right side
    1,996.80x = 3,395,227.90
  5. Step 5: Solve for x
    x = 3,395,227.90/1,996.80
  6. Step 6: Final answer
    x = 1,700.33

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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.