Home / 5,391.72-8,087.94-3,078.36

Finding the Fourth Proportional to 5,391.72, 8,087.94 and 3,078.36

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Solution

The fourth proportional to 5,391.72, 8,087.94 and 3,078.36 is: 4,617.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.72 : 8,087.94 = 3,078.36 : x
  2. Step 2: Convert to fraction form
    5,391.72/8,087.94 = 3,078.36/x
  3. Step 3: Cross multiply
    5,391.72x = 8,087.94 × 3,078.36
  4. Step 4: Simplify right side
    5,391.72x = 24,897,590.98
  5. Step 5: Solve for x
    x = 24,897,590.98/5,391.72
  6. Step 6: Final answer
    x = 4,617.75

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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.