Home / 1,352.25-2,028.38-326.25

Finding the Fourth Proportional to 1,352.25, 2,028.38 and 326.25

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Solution

The fourth proportional to 1,352.25, 2,028.38 and 326.25 is: 489.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.25 : 2,028.38 = 326.25 : x
  2. Step 2: Convert to fraction form
    1,352.25/2,028.38 = 326.25/x
  3. Step 3: Cross multiply
    1,352.25x = 2,028.38 × 326.25
  4. Step 4: Simplify right side
    1,352.25x = 661,757.34
  5. Step 5: Solve for x
    x = 661,757.34/1,352.25
  6. Step 6: Final answer
    x = 489.38

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1.5x scale

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.