Home / 5,217.57-7,827.72-1,519.72

Finding the Fourth Proportional to 5,217.57, 7,827.72 and 1,519.72

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Solution

The fourth proportional to 5,217.57, 7,827.72 and 1,519.72 is: 2,279.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.57 : 7,827.72 = 1,519.72 : x
  2. Step 2: Convert to fraction form
    5,217.57/7,827.72 = 1,519.72/x
  3. Step 3: Cross multiply
    5,217.57x = 7,827.72 × 1,519.72
  4. Step 4: Simplify right side
    5,217.57x = 11,895,942.64
  5. Step 5: Solve for x
    x = 11,895,942.64/5,217.57
  6. Step 6: Final answer
    x = 2,279.98

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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.