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Finding the Fourth Proportional to 1,494.79, 2,242.24 and 673.64

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Solution

The fourth proportional to 1,494.79, 2,242.24 and 673.64 is: 1,010.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494.79 : 2,242.24 = 673.64 : x
  2. Step 2: Convert to fraction form
    1,494.79/2,242.24 = 673.64/x
  3. Step 3: Cross multiply
    1,494.79x = 2,242.24 × 673.64
  4. Step 4: Simplify right side
    1,494.79x = 1,510,469.11
  5. Step 5: Solve for x
    x = 1,510,469.11/1,494.79
  6. Step 6: Final answer
    x = 1,010.49

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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.