Home / 5,389.50-8,084.25-2,311.50

Finding the Fourth Proportional to 5,389.50, 8,084.25 and 2,311.50

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Solution

The fourth proportional to 5,389.50, 8,084.25 and 2,311.50 is: 3,467.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.50 : 8,084.25 = 2,311.50 : x
  2. Step 2: Convert to fraction form
    5,389.50/8,084.25 = 2,311.50/x
  3. Step 3: Cross multiply
    5,389.50x = 8,084.25 × 2,311.50
  4. Step 4: Simplify right side
    5,389.50x = 18,686,743.88
  5. Step 5: Solve for x
    x = 18,686,743.88/5,389.50
  6. Step 6: Final answer
    x = 3,467.25

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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.