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Finding the Fourth Proportional to 1,452.33, 2,003.97 and 822.87

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Solution

The fourth proportional to 1,452.33, 2,003.97 and 822.87 is: 1,135.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.33 : 2,003.97 = 822.87 : x
  2. Step 2: Convert to fraction form
    1,452.33/2,003.97 = 822.87/x
  3. Step 3: Cross multiply
    1,452.33x = 2,003.97 × 822.87
  4. Step 4: Simplify right side
    1,452.33x = 1,649,006.79
  5. Step 5: Solve for x
    x = 1,649,006.79/1,452.33
  6. Step 6: Final answer
    x = 1,135.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.