Home / 5,786.42-8,678.54-2,821.89

Finding the Fourth Proportional to 5,786.42, 8,678.54 and 2,821.89

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Solution

The fourth proportional to 5,786.42, 8,678.54 and 2,821.89 is: 4,232.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,786.42 : 8,678.54 = 2,821.89 : x
  2. Step 2: Convert to fraction form
    5,786.42/8,678.54 = 2,821.89/x
  3. Step 3: Cross multiply
    5,786.42x = 8,678.54 × 2,821.89
  4. Step 4: Simplify right side
    5,786.42x = 24,489,885.24
  5. Step 5: Solve for x
    x = 24,489,885.24/5,786.42
  6. Step 6: Final answer
    x = 4,232.30

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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.