Home / 5,620.89-8,429.15-2,108.97

Finding the Fourth Proportional to 5,620.89, 8,429.15 and 2,108.97

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Solution

The fourth proportional to 5,620.89, 8,429.15 and 2,108.97 is: 3,162.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.89 : 8,429.15 = 2,108.97 : x
  2. Step 2: Convert to fraction form
    5,620.89/8,429.15 = 2,108.97/x
  3. Step 3: Cross multiply
    5,620.89x = 8,429.15 × 2,108.97
  4. Step 4: Simplify right side
    5,620.89x = 17,776,813.93
  5. Step 5: Solve for x
    x = 17,776,813.93/5,620.89
  6. Step 6: Final answer
    x = 3,162.63

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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.