Home / 5,165.25-7,741.40-2,667.21

Finding the Fourth Proportional to 5,165.25, 7,741.40 and 2,667.21

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Solution

The fourth proportional to 5,165.25, 7,741.40 and 2,667.21 is: 3,997.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.25 : 7,741.40 = 2,667.21 : x
  2. Step 2: Convert to fraction form
    5,165.25/7,741.40 = 2,667.21/x
  3. Step 3: Cross multiply
    5,165.25x = 7,741.40 × 2,667.21
  4. Step 4: Simplify right side
    5,165.25x = 20,647,926.16
  5. Step 5: Solve for x
    x = 20,647,926.16/5,165.25
  6. Step 6: Final answer
    x = 3,997.47

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1.5x scale

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.