Home / 5,771.83-8,658.58-1,821.75

Finding the Fourth Proportional to 5,771.83, 8,658.58 and 1,821.75

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Solution

The fourth proportional to 5,771.83, 8,658.58 and 1,821.75 is: 2,732.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,771.83 : 8,658.58 = 1,821.75 : x
  2. Step 2: Convert to fraction form
    5,771.83/8,658.58 = 1,821.75/x
  3. Step 3: Cross multiply
    5,771.83x = 8,658.58 × 1,821.75
  4. Step 4: Simplify right side
    5,771.83x = 15,773,768.12
  5. Step 5: Solve for x
    x = 15,773,768.12/5,771.83
  6. Step 6: Final answer
    x = 2,732.89

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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.