Home / 2,739.08-4,108.84-1,179.12

Finding the Fourth Proportional to 2,739.08, 4,108.84 and 1,179.12

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Solution

The fourth proportional to 2,739.08, 4,108.84 and 1,179.12 is: 1,768.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.08 : 4,108.84 = 1,179.12 : x
  2. Step 2: Convert to fraction form
    2,739.08/4,108.84 = 1,179.12/x
  3. Step 3: Cross multiply
    2,739.08x = 4,108.84 × 1,179.12
  4. Step 4: Simplify right side
    2,739.08x = 4,844,809.53
  5. Step 5: Solve for x
    x = 4,844,809.53/2,739.08
  6. Step 6: Final answer
    x = 1,768.78

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1.5x scale

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.