Home / 5,821.05-8,731.47-2,123.24

Finding the Fourth Proportional to 5,821.05, 8,731.47 and 2,123.24

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Solution

The fourth proportional to 5,821.05, 8,731.47 and 2,123.24 is: 3,184.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,821.05 : 8,731.47 = 2,123.24 : x
  2. Step 2: Convert to fraction form
    5,821.05/8,731.47 = 2,123.24/x
  3. Step 3: Cross multiply
    5,821.05x = 8,731.47 × 2,123.24
  4. Step 4: Simplify right side
    5,821.05x = 18,539,028.19
  5. Step 5: Solve for x
    x = 18,539,028.19/5,821.05
  6. Step 6: Final answer
    x = 3,184.83

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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.