Home / 5,081.88-7,620.36-2,741.40

Finding the Fourth Proportional to 5,081.88, 7,620.36 and 2,741.40

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Solution

The fourth proportional to 5,081.88, 7,620.36 and 2,741.40 is: 4,110.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.88 : 7,620.36 = 2,741.40 : x
  2. Step 2: Convert to fraction form
    5,081.88/7,620.36 = 2,741.40/x
  3. Step 3: Cross multiply
    5,081.88x = 7,620.36 × 2,741.40
  4. Step 4: Simplify right side
    5,081.88x = 20,890,454.90
  5. Step 5: Solve for x
    x = 20,890,454.90/5,081.88
  6. Step 6: Final answer
    x = 4,110.77

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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.