Home / 7,072.89-10,609.34-2,143.03

Finding the Fourth Proportional to 7,072.89, 10,609.34 and 2,143.03

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Solution

The fourth proportional to 7,072.89, 10,609.34 and 2,143.03 is: 3,214.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.89 : 10,609.34 = 2,143.03 : x
  2. Step 2: Convert to fraction form
    7,072.89/10,609.34 = 2,143.03/x
  3. Step 3: Cross multiply
    7,072.89x = 10,609.34 × 2,143.03
  4. Step 4: Simplify right side
    7,072.89x = 22,736,096.66
  5. Step 5: Solve for x
    x = 22,736,096.66/7,072.89
  6. Step 6: Final answer
    x = 3,214.54

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.