Home / 5,475.12-8,213.09-1,579.83

Finding the Fourth Proportional to 5,475.12, 8,213.09 and 1,579.83

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Solution

The fourth proportional to 5,475.12, 8,213.09 and 1,579.83 is: 2,369.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.12 : 8,213.09 = 1,579.83 : x
  2. Step 2: Convert to fraction form
    5,475.12/8,213.09 = 1,579.83/x
  3. Step 3: Cross multiply
    5,475.12x = 8,213.09 × 1,579.83
  4. Step 4: Simplify right side
    5,475.12x = 12,975,278.08
  5. Step 5: Solve for x
    x = 12,975,278.08/5,475.12
  6. Step 6: Final answer
    x = 2,369.86

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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.