Home / 3,027.80-4,542.38-1,080

Finding the Fourth Proportional to 3,027.80, 4,542.38 and 1,080

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Solution

The fourth proportional to 3,027.80, 4,542.38 and 1,080 is: 1,620.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,027.80 : 4,542.38 = 1,080 : x
  2. Step 2: Convert to fraction form
    3,027.80/4,542.38 = 1,080/x
  3. Step 3: Cross multiply
    3,027.80x = 4,542.38 × 1,080
  4. Step 4: Simplify right side
    3,027.80x = 4,905,769.05
  5. Step 5: Solve for x
    x = 4,905,769.05/3,027.80
  6. Step 6: Final answer
    x = 1,620.24

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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.