Home / 5,171.21-7,751.35-2,399.75

Finding the Fourth Proportional to 5,171.21, 7,751.35 and 2,399.75

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Solution

The fourth proportional to 5,171.21, 7,751.35 and 2,399.75 is: 3,597.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.21 : 7,751.35 = 2,399.75 : x
  2. Step 2: Convert to fraction form
    5,171.21/7,751.35 = 2,399.75/x
  3. Step 3: Cross multiply
    5,171.21x = 7,751.35 × 2,399.75
  4. Step 4: Simplify right side
    5,171.21x = 18,601,302.16
  5. Step 5: Solve for x
    x = 18,601,302.16/5,171.21
  6. Step 6: Final answer
    x = 3,597.09

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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.