Home / 5,475.34-8,213.19-1,579.78

Finding the Fourth Proportional to 5,475.34, 8,213.19 and 1,579.78

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Solution

The fourth proportional to 5,475.34, 8,213.19 and 1,579.78 is: 2,369.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.34 : 8,213.19 = 1,579.78 : x
  2. Step 2: Convert to fraction form
    5,475.34/8,213.19 = 1,579.78/x
  3. Step 3: Cross multiply
    5,475.34x = 8,213.19 × 1,579.78
  4. Step 4: Simplify right side
    5,475.34x = 12,975,033.30
  5. Step 5: Solve for x
    x = 12,975,033.30/5,475.34
  6. Step 6: Final answer
    x = 2,369.72

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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.