Home / 5,234.27-7,851.56-2,115.77

Finding the Fourth Proportional to 5,234.27, 7,851.56 and 2,115.77

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Solution

The fourth proportional to 5,234.27, 7,851.56 and 2,115.77 is: 3,173.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,234.27 : 7,851.56 = 2,115.77 : x
  2. Step 2: Convert to fraction form
    5,234.27/7,851.56 = 2,115.77/x
  3. Step 3: Cross multiply
    5,234.27x = 7,851.56 × 2,115.77
  4. Step 4: Simplify right side
    5,234.27x = 16,612,045.26
  5. Step 5: Solve for x
    x = 16,612,045.26/5,234.27
  6. Step 6: Final answer
    x = 3,173.71

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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.