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Finding the Fourth Proportional to 2,394.21, 3,591.32 and 662.79

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Solution

The fourth proportional to 2,394.21, 3,591.32 and 662.79 is: 994.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,394.21 : 3,591.32 = 662.79 : x
  2. Step 2: Convert to fraction form
    2,394.21/3,591.32 = 662.79/x
  3. Step 3: Cross multiply
    2,394.21x = 3,591.32 × 662.79
  4. Step 4: Simplify right side
    2,394.21x = 2,380,287.67
  5. Step 5: Solve for x
    x = 2,380,287.67/2,394.21
  6. Step 6: Final answer
    x = 994.19

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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.