Home / 5,695.20-8,538.75-2,405.79

Finding the Fourth Proportional to 5,695.20, 8,538.75 and 2,405.79

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Solution

The fourth proportional to 5,695.20, 8,538.75 and 2,405.79 is: 3,606.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,695.20 : 8,538.75 = 2,405.79 : x
  2. Step 2: Convert to fraction form
    5,695.20/8,538.75 = 2,405.79/x
  3. Step 3: Cross multiply
    5,695.20x = 8,538.75 × 2,405.79
  4. Step 4: Simplify right side
    5,695.20x = 20,542,439.36
  5. Step 5: Solve for x
    x = 20,542,439.36/5,695.20
  6. Step 6: Final answer
    x = 3,606.97

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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.