Home / 5,172.44-7,138.22-3,048.60

Finding the Fourth Proportional to 5,172.44, 7,138.22 and 3,048.60

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Solution

The fourth proportional to 5,172.44, 7,138.22 and 3,048.60 is: 4,207.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.44 : 7,138.22 = 3,048.60 : x
  2. Step 2: Convert to fraction form
    5,172.44/7,138.22 = 3,048.60/x
  3. Step 3: Cross multiply
    5,172.44x = 7,138.22 × 3,048.60
  4. Step 4: Simplify right side
    5,172.44x = 21,761,577.49
  5. Step 5: Solve for x
    x = 21,761,577.49/5,172.44
  6. Step 6: Final answer
    x = 4,207.22

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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.