Home / 3,947.56-5,921.49-1,025.79

Finding the Fourth Proportional to 3,947.56, 5,921.49 and 1,025.79

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Solution

The fourth proportional to 3,947.56, 5,921.49 and 1,025.79 is: 1,538.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.56 : 5,921.49 = 1,025.79 : x
  2. Step 2: Convert to fraction form
    3,947.56/5,921.49 = 1,025.79/x
  3. Step 3: Cross multiply
    3,947.56x = 5,921.49 × 1,025.79
  4. Step 4: Simplify right side
    3,947.56x = 6,074,205.23
  5. Step 5: Solve for x
    x = 6,074,205.23/3,947.56
  6. Step 6: Final answer
    x = 1,538.72

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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.