Home / 5,389.48-8,086.96-3,171.50

Finding the Fourth Proportional to 5,389.48, 8,086.96 and 3,171.50

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Solution

The fourth proportional to 5,389.48, 8,086.96 and 3,171.50 is: 4,758.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.48 : 8,086.96 = 3,171.50 : x
  2. Step 2: Convert to fraction form
    5,389.48/8,086.96 = 3,171.50/x
  3. Step 3: Cross multiply
    5,389.48x = 8,086.96 × 3,171.50
  4. Step 4: Simplify right side
    5,389.48x = 25,647,753.21
  5. Step 5: Solve for x
    x = 25,647,753.21/5,389.48
  6. Step 6: Final answer
    x = 4,758.86

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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.