Home / 5,881.21-8,115.90-3,228.56

Finding the Fourth Proportional to 5,881.21, 8,115.90 and 3,228.56

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Solution

The fourth proportional to 5,881.21, 8,115.90 and 3,228.56 is: 4,455.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,881.21 : 8,115.90 = 3,228.56 : x
  2. Step 2: Convert to fraction form
    5,881.21/8,115.90 = 3,228.56/x
  3. Step 3: Cross multiply
    5,881.21x = 8,115.90 × 3,228.56
  4. Step 4: Simplify right side
    5,881.21x = 26,202,647.85
  5. Step 5: Solve for x
    x = 26,202,647.85/5,881.21
  6. Step 6: Final answer
    x = 4,455.32

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1.5x scale

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.