Home / 3,947.51-5,921.27-1,025.79

Finding the Fourth Proportional to 3,947.51, 5,921.27 and 1,025.79

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Solution

The fourth proportional to 3,947.51, 5,921.27 and 1,025.79 is: 1,538.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.51 : 5,921.27 = 1,025.79 : x
  2. Step 2: Convert to fraction form
    3,947.51/5,921.27 = 1,025.79/x
  3. Step 3: Cross multiply
    3,947.51x = 5,921.27 × 1,025.79
  4. Step 4: Simplify right side
    3,947.51x = 6,073,979.55
  5. Step 5: Solve for x
    x = 6,073,979.55/3,947.51
  6. Step 6: Final answer
    x = 1,538.69

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Similar ratio
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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.