Home / 5,818.82-8,731.24-2,123.56

Finding the Fourth Proportional to 5,818.82, 8,731.24 and 2,123.56

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Solution

The fourth proportional to 5,818.82, 8,731.24 and 2,123.56 is: 3,186.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,818.82 : 8,731.24 = 2,123.56 : x
  2. Step 2: Convert to fraction form
    5,818.82/8,731.24 = 2,123.56/x
  3. Step 3: Cross multiply
    5,818.82x = 8,731.24 × 2,123.56
  4. Step 4: Simplify right side
    5,818.82x = 18,541,312.01
  5. Step 5: Solve for x
    x = 18,541,312.01/5,818.82
  6. Step 6: Final answer
    x = 3,186.44

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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.