Home / 1,204.72-1,811.20-1,114.54

Finding the Fourth Proportional to 1,204.72, 1,811.20 and 1,114.54

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Solution

The fourth proportional to 1,204.72, 1,811.20 and 1,114.54 is: 1,675.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204.72 : 1,811.20 = 1,114.54 : x
  2. Step 2: Convert to fraction form
    1,204.72/1,811.20 = 1,114.54/x
  3. Step 3: Cross multiply
    1,204.72x = 1,811.20 × 1,114.54
  4. Step 4: Simplify right side
    1,204.72x = 2,018,654.85
  5. Step 5: Solve for x
    x = 2,018,654.85/1,204.72
  6. Step 6: Final answer
    x = 1,675.62

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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.