Home / 5,311.08-7,960.44-2,190.24

Finding the Fourth Proportional to 5,311.08, 7,960.44 and 2,190.24

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Solution

The fourth proportional to 5,311.08, 7,960.44 and 2,190.24 is: 3,282.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.08 : 7,960.44 = 2,190.24 : x
  2. Step 2: Convert to fraction form
    5,311.08/7,960.44 = 2,190.24/x
  3. Step 3: Cross multiply
    5,311.08x = 7,960.44 × 2,190.24
  4. Step 4: Simplify right side
    5,311.08x = 17,435,274.11
  5. Step 5: Solve for x
    x = 17,435,274.11/5,311.08
  6. Step 6: Final answer
    x = 3,282.81

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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.