Home / 1,992.18-2,989.59-1,334.76

Finding the Fourth Proportional to 1,992.18, 2,989.59 and 1,334.76

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Solution

The fourth proportional to 1,992.18, 2,989.59 and 1,334.76 is: 2,003.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.18 : 2,989.59 = 1,334.76 : x
  2. Step 2: Convert to fraction form
    1,992.18/2,989.59 = 1,334.76/x
  3. Step 3: Cross multiply
    1,992.18x = 2,989.59 × 1,334.76
  4. Step 4: Simplify right side
    1,992.18x = 3,990,380.14
  5. Step 5: Solve for x
    x = 3,990,380.14/1,992.18
  6. Step 6: Final answer
    x = 2,003.03

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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.