Home / 5,081.26-7,622.31-1,961.14

Finding the Fourth Proportional to 5,081.26, 7,622.31 and 1,961.14

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Solution

The fourth proportional to 5,081.26, 7,622.31 and 1,961.14 is: 2,941.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.26 : 7,622.31 = 1,961.14 : x
  2. Step 2: Convert to fraction form
    5,081.26/7,622.31 = 1,961.14/x
  3. Step 3: Cross multiply
    5,081.26x = 7,622.31 × 1,961.14
  4. Step 4: Simplify right side
    5,081.26x = 14,948,417.03
  5. Step 5: Solve for x
    x = 14,948,417.03/5,081.26
  6. Step 6: Final answer
    x = 2,941.87

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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.