Home / 1,351.23-2,026.85-325.23

Finding the Fourth Proportional to 1,351.23, 2,026.85 and 325.23

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Solution

The fourth proportional to 1,351.23, 2,026.85 and 325.23 is: 487.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351.23 : 2,026.85 = 325.23 : x
  2. Step 2: Convert to fraction form
    1,351.23/2,026.85 = 325.23/x
  3. Step 3: Cross multiply
    1,351.23x = 2,026.85 × 325.23
  4. Step 4: Simplify right side
    1,351.23x = 659,183.20
  5. Step 5: Solve for x
    x = 659,183.20/1,351.23
  6. Step 6: Final answer
    x = 487.84

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Double scale
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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.