Home / 5,418.38-8,127.89-1,523.09

Finding the Fourth Proportional to 5,418.38, 8,127.89 and 1,523.09

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Solution

The fourth proportional to 5,418.38, 8,127.89 and 1,523.09 is: 2,284.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.38 : 8,127.89 = 1,523.09 : x
  2. Step 2: Convert to fraction form
    5,418.38/8,127.89 = 1,523.09/x
  3. Step 3: Cross multiply
    5,418.38x = 8,127.89 × 1,523.09
  4. Step 4: Simplify right side
    5,418.38x = 12,379,500.36
  5. Step 5: Solve for x
    x = 12,379,500.36/5,418.38
  6. Step 6: Final answer
    x = 2,284.72

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1.5x scale

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.