Home / 2,619.08-3,928.01-1,157.43

Finding the Fourth Proportional to 2,619.08, 3,928.01 and 1,157.43

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Solution

The fourth proportional to 2,619.08, 3,928.01 and 1,157.43 is: 1,735.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.08 : 3,928.01 = 1,157.43 : x
  2. Step 2: Convert to fraction form
    2,619.08/3,928.01 = 1,157.43/x
  3. Step 3: Cross multiply
    2,619.08x = 3,928.01 × 1,157.43
  4. Step 4: Simplify right side
    2,619.08x = 4,546,390.83
  5. Step 5: Solve for x
    x = 4,546,390.83/2,619.08
  6. Step 6: Final answer
    x = 1,735.88

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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.