Home / 2,739.52-4,109.12-1,200

Finding the Fourth Proportional to 2,739.52, 4,109.12 and 1,200

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Solution

The fourth proportional to 2,739.52, 4,109.12 and 1,200 is: 1,799.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.52 : 4,109.12 = 1,200 : x
  2. Step 2: Convert to fraction form
    2,739.52/4,109.12 = 1,200/x
  3. Step 3: Cross multiply
    2,739.52x = 4,109.12 × 1,200
  4. Step 4: Simplify right side
    2,739.52x = 4,930,944
  5. Step 5: Solve for x
    x = 4,930,944/2,739.52
  6. Step 6: Final answer
    x = 1,799.93

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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.