Home / 5,619.16-8,428.97-2,108.80

Finding the Fourth Proportional to 5,619.16, 8,428.97 and 2,108.80

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Solution

The fourth proportional to 5,619.16, 8,428.97 and 2,108.80 is: 3,163.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.16 : 8,428.97 = 2,108.80 : x
  2. Step 2: Convert to fraction form
    5,619.16/8,428.97 = 2,108.80/x
  3. Step 3: Cross multiply
    5,619.16x = 8,428.97 × 2,108.80
  4. Step 4: Simplify right side
    5,619.16x = 17,775,011.94
  5. Step 5: Solve for x
    x = 17,775,011.94/5,619.16
  6. Step 6: Final answer
    x = 3,163.29

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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.