Home / 5,120.27-7,065.96-2,997.26

Finding the Fourth Proportional to 5,120.27, 7,065.96 and 2,997.26

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Solution

The fourth proportional to 5,120.27, 7,065.96 and 2,997.26 is: 4,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.27 : 7,065.96 = 2,997.26 : x
  2. Step 2: Convert to fraction form
    5,120.27/7,065.96 = 2,997.26/x
  3. Step 3: Cross multiply
    5,120.27x = 7,065.96 × 2,997.26
  4. Step 4: Simplify right side
    5,120.27x = 21,178,519.27
  5. Step 5: Solve for x
    x = 21,178,519.27/5,120.27
  6. Step 6: Final answer
    x = 4,136.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.