Home / 5,685.12-8,517.96-3,089.88

Finding the Fourth Proportional to 5,685.12, 8,517.96 and 3,089.88

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Solution

The fourth proportional to 5,685.12, 8,517.96 and 3,089.88 is: 4,629.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.12 : 8,517.96 = 3,089.88 : x
  2. Step 2: Convert to fraction form
    5,685.12/8,517.96 = 3,089.88/x
  3. Step 3: Cross multiply
    5,685.12x = 8,517.96 × 3,089.88
  4. Step 4: Simplify right side
    5,685.12x = 26,319,474.24
  5. Step 5: Solve for x
    x = 26,319,474.24/5,685.12
  6. Step 6: Final answer
    x = 4,629.54

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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.