Home / 5,821.83-8,731.87-2,123.19

Finding the Fourth Proportional to 5,821.83, 8,731.87 and 2,123.19

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Solution

The fourth proportional to 5,821.83, 8,731.87 and 2,123.19 is: 3,184.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,821.83 : 8,731.87 = 2,123.19 : x
  2. Step 2: Convert to fraction form
    5,821.83/8,731.87 = 2,123.19/x
  3. Step 3: Cross multiply
    5,821.83x = 8,731.87 × 2,123.19
  4. Step 4: Simplify right side
    5,821.83x = 18,539,419.07
  5. Step 5: Solve for x
    x = 18,539,419.07/5,821.83
  6. Step 6: Final answer
    x = 3,184.47

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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.