Home / 3,553.12-5,322.40-3,392.80

Finding the Fourth Proportional to 3,553.12, 5,322.40 and 3,392.80

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Solution

The fourth proportional to 3,553.12, 5,322.40 and 3,392.80 is: 5,082.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.12 : 5,322.40 = 3,392.80 : x
  2. Step 2: Convert to fraction form
    3,553.12/5,322.40 = 3,392.80/x
  3. Step 3: Cross multiply
    3,553.12x = 5,322.40 × 3,392.80
  4. Step 4: Simplify right side
    3,553.12x = 18,057,838.72
  5. Step 5: Solve for x
    x = 18,057,838.72/3,553.12
  6. Step 6: Final answer
    x = 5,082.25

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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.