Home / 2,739.02-4,108.12-2,279.75

Finding the Fourth Proportional to 2,739.02, 4,108.12 and 2,279.75

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Solution

The fourth proportional to 2,739.02, 4,108.12 and 2,279.75 is: 3,419.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.02 : 4,108.12 = 2,279.75 : x
  2. Step 2: Convert to fraction form
    2,739.02/4,108.12 = 2,279.75/x
  3. Step 3: Cross multiply
    2,739.02x = 4,108.12 × 2,279.75
  4. Step 4: Simplify right side
    2,739.02x = 9,365,460.33
  5. Step 5: Solve for x
    x = 9,365,460.33/2,739.02
  6. Step 6: Final answer
    x = 3,419.28

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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.