Home / 5,180.58-7,146.27-3,190.74

Finding the Fourth Proportional to 5,180.58, 7,146.27 and 3,190.74

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Solution

The fourth proportional to 5,180.58, 7,146.27 and 3,190.74 is: 4,401.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.58 : 7,146.27 = 3,190.74 : x
  2. Step 2: Convert to fraction form
    5,180.58/7,146.27 = 3,190.74/x
  3. Step 3: Cross multiply
    5,180.58x = 7,146.27 × 3,190.74
  4. Step 4: Simplify right side
    5,180.58x = 22,801,889.54
  5. Step 5: Solve for x
    x = 22,801,889.54/5,180.58
  6. Step 6: Final answer
    x = 4,401.42

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Double scale
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Similar ratio
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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.