Home / 1,352.16-2,028.24-326.16

Finding the Fourth Proportional to 1,352.16, 2,028.24 and 326.16

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Solution

The fourth proportional to 1,352.16, 2,028.24 and 326.16 is: 489.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.16 : 2,028.24 = 326.16 : x
  2. Step 2: Convert to fraction form
    1,352.16/2,028.24 = 326.16/x
  3. Step 3: Cross multiply
    1,352.16x = 2,028.24 × 326.16
  4. Step 4: Simplify right side
    1,352.16x = 661,529.13
  5. Step 5: Solve for x
    x = 661,529.13/1,352.16
  6. Step 6: Final answer
    x = 489.24

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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.