Home / 1,219.20-1,825.36-1,103.88

Finding the Fourth Proportional to 1,219.20, 1,825.36 and 1,103.88

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Solution

The fourth proportional to 1,219.20, 1,825.36 and 1,103.88 is: 1,652.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219.20 : 1,825.36 = 1,103.88 : x
  2. Step 2: Convert to fraction form
    1,219.20/1,825.36 = 1,103.88/x
  3. Step 3: Cross multiply
    1,219.20x = 1,825.36 × 1,103.88
  4. Step 4: Simplify right side
    1,219.20x = 2,014,978.40
  5. Step 5: Solve for x
    x = 2,014,978.40/1,219.20
  6. Step 6: Final answer
    x = 1,652.71

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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.