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Finding the Fourth Proportional to 3,921.89, 5,883.03 and 1,000.22

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Solution

The fourth proportional to 3,921.89, 5,883.03 and 1,000.22 is: 1,500.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.89 : 5,883.03 = 1,000.22 : x
  2. Step 2: Convert to fraction form
    3,921.89/5,883.03 = 1,000.22/x
  3. Step 3: Cross multiply
    3,921.89x = 5,883.03 × 1,000.22
  4. Step 4: Simplify right side
    3,921.89x = 5,884,294.85
  5. Step 5: Solve for x
    x = 5,884,294.85/3,921.89
  6. Step 6: Final answer
    x = 1,500.37

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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.