Home / 5,920.49-8,170.32-3,231.90

Finding the Fourth Proportional to 5,920.49, 8,170.32 and 3,231.90

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Solution

The fourth proportional to 5,920.49, 8,170.32 and 3,231.90 is: 4,460.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.49 : 8,170.32 = 3,231.90 : x
  2. Step 2: Convert to fraction form
    5,920.49/8,170.32 = 3,231.90/x
  3. Step 3: Cross multiply
    5,920.49x = 8,170.32 × 3,231.90
  4. Step 4: Simplify right side
    5,920.49x = 26,405,669.33
  5. Step 5: Solve for x
    x = 26,405,669.33/5,920.49
  6. Step 6: Final answer
    x = 4,460.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.