Home / 5,311.43-7,968.09-2,189.70

Finding the Fourth Proportional to 5,311.43, 7,968.09 and 2,189.70

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Solution

The fourth proportional to 5,311.43, 7,968.09 and 2,189.70 is: 3,284.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.43 : 7,968.09 = 2,189.70 : x
  2. Step 2: Convert to fraction form
    5,311.43/7,968.09 = 2,189.70/x
  3. Step 3: Cross multiply
    5,311.43x = 7,968.09 × 2,189.70
  4. Step 4: Simplify right side
    5,311.43x = 17,447,726.67
  5. Step 5: Solve for x
    x = 17,447,726.67/5,311.43
  6. Step 6: Final answer
    x = 3,284.94

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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.