Home / 5,780.25-8,664.30-4,131.90

Finding the Fourth Proportional to 5,780.25, 8,664.30 and 4,131.90

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Solution

The fourth proportional to 5,780.25, 8,664.30 and 4,131.90 is: 6,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.25 : 8,664.30 = 4,131.90 : x
  2. Step 2: Convert to fraction form
    5,780.25/8,664.30 = 4,131.90/x
  3. Step 3: Cross multiply
    5,780.25x = 8,664.30 × 4,131.90
  4. Step 4: Simplify right side
    5,780.25x = 35,800,021.17
  5. Step 5: Solve for x
    x = 35,800,021.17/5,780.25
  6. Step 6: Final answer
    x = 6,193.51

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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.