Home / 5,905.98-8,860.22-3,131.90

Finding the Fourth Proportional to 5,905.98, 8,860.22 and 3,131.90

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Solution

The fourth proportional to 5,905.98, 8,860.22 and 3,131.90 is: 4,698.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,905.98 : 8,860.22 = 3,131.90 : x
  2. Step 2: Convert to fraction form
    5,905.98/8,860.22 = 3,131.90/x
  3. Step 3: Cross multiply
    5,905.98x = 8,860.22 × 3,131.90
  4. Step 4: Simplify right side
    5,905.98x = 27,749,323.02
  5. Step 5: Solve for x
    x = 27,749,323.02/5,905.98
  6. Step 6: Final answer
    x = 4,698.51

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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.