Home / 1,353.11-2,029.66-327.11

Finding the Fourth Proportional to 1,353.11, 2,029.66 and 327.11

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Solution

The fourth proportional to 1,353.11, 2,029.66 and 327.11 is: 490.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.11 : 2,029.66 = 327.11 : x
  2. Step 2: Convert to fraction form
    1,353.11/2,029.66 = 327.11/x
  3. Step 3: Cross multiply
    1,353.11x = 2,029.66 × 327.11
  4. Step 4: Simplify right side
    1,353.11x = 663,922.08
  5. Step 5: Solve for x
    x = 663,922.08/1,353.11
  6. Step 6: Final answer
    x = 490.66

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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.