Home / 2,739.03-4,102.16-2,120.75

Finding the Fourth Proportional to 2,739.03, 4,102.16 and 2,120.75

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Solution

The fourth proportional to 2,739.03, 4,102.16 and 2,120.75 is: 3,176.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.03 : 4,102.16 = 2,120.75 : x
  2. Step 2: Convert to fraction form
    2,739.03/4,102.16 = 2,120.75/x
  3. Step 3: Cross multiply
    2,739.03x = 4,102.16 × 2,120.75
  4. Step 4: Simplify right side
    2,739.03x = 8,699,655.82
  5. Step 5: Solve for x
    x = 8,699,655.82/2,739.03
  6. Step 6: Final answer
    x = 3,176.18

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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.