Home / 5,189.36-7,161.31-2,951.18

Finding the Fourth Proportional to 5,189.36, 7,161.31 and 2,951.18

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Solution

The fourth proportional to 5,189.36, 7,161.31 and 2,951.18 is: 4,072.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.36 : 7,161.31 = 2,951.18 : x
  2. Step 2: Convert to fraction form
    5,189.36/7,161.31 = 2,951.18/x
  3. Step 3: Cross multiply
    5,189.36x = 7,161.31 × 2,951.18
  4. Step 4: Simplify right side
    5,189.36x = 21,134,314.85
  5. Step 5: Solve for x
    x = 21,134,314.85/5,189.36
  6. Step 6: Final answer
    x = 4,072.62

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Half scale
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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.