Home / 2,452.21-3,383.29-1,389.80

Finding the Fourth Proportional to 2,452.21, 3,383.29 and 1,389.80

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Solution

The fourth proportional to 2,452.21, 3,383.29 and 1,389.80 is: 1,917.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,452.21 : 3,383.29 = 1,389.80 : x
  2. Step 2: Convert to fraction form
    2,452.21/3,383.29 = 1,389.80/x
  3. Step 3: Cross multiply
    2,452.21x = 3,383.29 × 1,389.80
  4. Step 4: Simplify right side
    2,452.21x = 4,702,096.44
  5. Step 5: Solve for x
    x = 4,702,096.44/2,452.21
  6. Step 6: Final answer
    x = 1,917.49

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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.