Home / 1,808.15-2,712.56-1,192.37

Finding the Fourth Proportional to 1,808.15, 2,712.56 and 1,192.37

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Solution

The fourth proportional to 1,808.15, 2,712.56 and 1,192.37 is: 1,788.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.15 : 2,712.56 = 1,192.37 : x
  2. Step 2: Convert to fraction form
    1,808.15/2,712.56 = 1,192.37/x
  3. Step 3: Cross multiply
    1,808.15x = 2,712.56 × 1,192.37
  4. Step 4: Simplify right side
    1,808.15x = 3,234,380.96
  5. Step 5: Solve for x
    x = 3,234,380.96/1,808.15
  6. Step 6: Final answer
    x = 1,788.78

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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.