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Finding the Fourth Proportional to 2,621.34, 3,932.01 and 673.62

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Solution

The fourth proportional to 2,621.34, 3,932.01 and 673.62 is: 1,010.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.34 : 3,932.01 = 673.62 : x
  2. Step 2: Convert to fraction form
    2,621.34/3,932.01 = 673.62/x
  3. Step 3: Cross multiply
    2,621.34x = 3,932.01 × 673.62
  4. Step 4: Simplify right side
    2,621.34x = 2,648,680.58
  5. Step 5: Solve for x
    x = 2,648,680.58/2,621.34
  6. Step 6: Final answer
    x = 1,010.43

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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.