Home / 5,871.12-8,805.90-2,122.52

Finding the Fourth Proportional to 5,871.12, 8,805.90 and 2,122.52

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Solution

The fourth proportional to 5,871.12, 8,805.90 and 2,122.52 is: 3,183.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871.12 : 8,805.90 = 2,122.52 : x
  2. Step 2: Convert to fraction form
    5,871.12/8,805.90 = 2,122.52/x
  3. Step 3: Cross multiply
    5,871.12x = 8,805.90 × 2,122.52
  4. Step 4: Simplify right side
    5,871.12x = 18,690,654.84
  5. Step 5: Solve for x
    x = 18,690,654.84/5,871.12
  6. Step 6: Final answer
    x = 3,183.49

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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.