Home / 5,621.18-8,431.97-2,110.86

Finding the Fourth Proportional to 5,621.18, 8,431.97 and 2,110.86

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Solution

The fourth proportional to 5,621.18, 8,431.97 and 2,110.86 is: 3,166.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.18 : 8,431.97 = 2,110.86 : x
  2. Step 2: Convert to fraction form
    5,621.18/8,431.97 = 2,110.86/x
  3. Step 3: Cross multiply
    5,621.18x = 8,431.97 × 2,110.86
  4. Step 4: Simplify right side
    5,621.18x = 17,798,697.64
  5. Step 5: Solve for x
    x = 17,798,697.64/5,621.18
  6. Step 6: Final answer
    x = 3,166.37

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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.