Home / 3,754.28-5,628.70-1,155.72

Finding the Fourth Proportional to 3,754.28, 5,628.70 and 1,155.72

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Solution

The fourth proportional to 3,754.28, 5,628.70 and 1,155.72 is: 1,732.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754.28 : 5,628.70 = 1,155.72 : x
  2. Step 2: Convert to fraction form
    3,754.28/5,628.70 = 1,155.72/x
  3. Step 3: Cross multiply
    3,754.28x = 5,628.70 × 1,155.72
  4. Step 4: Simplify right side
    3,754.28x = 6,505,201.16
  5. Step 5: Solve for x
    x = 6,505,201.16/3,754.28
  6. Step 6: Final answer
    x = 1,732.74

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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.