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Finding the Fourth Proportional to 3,889.72, 5,836.82 and 2,330.20

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Solution

The fourth proportional to 3,889.72, 5,836.82 and 2,330.20 is: 3,496.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.72 : 5,836.82 = 2,330.20 : x
  2. Step 2: Convert to fraction form
    3,889.72/5,836.82 = 2,330.20/x
  3. Step 3: Cross multiply
    3,889.72x = 5,836.82 × 2,330.20
  4. Step 4: Simplify right side
    3,889.72x = 13,600,957.96
  5. Step 5: Solve for x
    x = 13,600,957.96/3,889.72
  6. Step 6: Final answer
    x = 3,496.64

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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.