Home / 3,561.28-5,352-2,101.12

Finding the Fourth Proportional to 3,561.28, 5,352 and 2,101.12

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Solution

The fourth proportional to 3,561.28, 5,352 and 2,101.12 is: 3,157.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.28 : 5,352 = 2,101.12 : x
  2. Step 2: Convert to fraction form
    3,561.28/5,352 = 2,101.12/x
  3. Step 3: Cross multiply
    3,561.28x = 5,352 × 2,101.12
  4. Step 4: Simplify right side
    3,561.28x = 11,245,194.24
  5. Step 5: Solve for x
    x = 11,245,194.24/3,561.28
  6. Step 6: Final answer
    x = 3,157.63

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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.