Home / 3,947.50-5,921.30-1,025.64

Finding the Fourth Proportional to 3,947.50, 5,921.30 and 1,025.64

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Solution

The fourth proportional to 3,947.50, 5,921.30 and 1,025.64 is: 1,538.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.50 : 5,921.30 = 1,025.64 : x
  2. Step 2: Convert to fraction form
    3,947.50/5,921.30 = 1,025.64/x
  3. Step 3: Cross multiply
    3,947.50x = 5,921.30 × 1,025.64
  4. Step 4: Simplify right side
    3,947.50x = 6,073,122.13
  5. Step 5: Solve for x
    x = 6,073,122.13/3,947.50
  6. Step 6: Final answer
    x = 1,538.47

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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.