Home / 5,745.86-8,618.79-3,147.38

Finding the Fourth Proportional to 5,745.86, 8,618.79 and 3,147.38

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Solution

The fourth proportional to 5,745.86, 8,618.79 and 3,147.38 is: 4,721.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,745.86 : 8,618.79 = 3,147.38 : x
  2. Step 2: Convert to fraction form
    5,745.86/8,618.79 = 3,147.38/x
  3. Step 3: Cross multiply
    5,745.86x = 8,618.79 × 3,147.38
  4. Step 4: Simplify right side
    5,745.86x = 27,126,607.27
  5. Step 5: Solve for x
    x = 27,126,607.27/5,745.86
  6. Step 6: Final answer
    x = 4,721.07

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Similar ratio
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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.