Home / 5,815.27-8,723.24-2,117.89

Finding the Fourth Proportional to 5,815.27, 8,723.24 and 2,117.89

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Solution

The fourth proportional to 5,815.27, 8,723.24 and 2,117.89 is: 3,176.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.27 : 8,723.24 = 2,117.89 : x
  2. Step 2: Convert to fraction form
    5,815.27/8,723.24 = 2,117.89/x
  3. Step 3: Cross multiply
    5,815.27x = 8,723.24 × 2,117.89
  4. Step 4: Simplify right side
    5,815.27x = 18,474,862.76
  5. Step 5: Solve for x
    x = 18,474,862.76/5,815.27
  6. Step 6: Final answer
    x = 3,176.96

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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.