Home / 5,172.82-7,137.91-3,048.22

Finding the Fourth Proportional to 5,172.82, 7,137.91 and 3,048.22

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Solution

The fourth proportional to 5,172.82, 7,137.91 and 3,048.22 is: 4,206.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.82 : 7,137.91 = 3,048.22 : x
  2. Step 2: Convert to fraction form
    5,172.82/7,137.91 = 3,048.22/x
  3. Step 3: Cross multiply
    5,172.82x = 7,137.91 × 3,048.22
  4. Step 4: Simplify right side
    5,172.82x = 21,757,920.02
  5. Step 5: Solve for x
    x = 21,757,920.02/5,172.82
  6. Step 6: Final answer
    x = 4,206.20

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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.