Home / 5,150.16-7,720.92-2,071.44

Finding the Fourth Proportional to 5,150.16, 7,720.92 and 2,071.44

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Solution

The fourth proportional to 5,150.16, 7,720.92 and 2,071.44 is: 3,105.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.16 : 7,720.92 = 2,071.44 : x
  2. Step 2: Convert to fraction form
    5,150.16/7,720.92 = 2,071.44/x
  3. Step 3: Cross multiply
    5,150.16x = 7,720.92 × 2,071.44
  4. Step 4: Simplify right side
    5,150.16x = 15,993,422.52
  5. Step 5: Solve for x
    x = 15,993,422.52/5,150.16
  6. Step 6: Final answer
    x = 3,105.42

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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.