Home / 5,540.13-8,311.70-2,420.42

Finding the Fourth Proportional to 5,540.13, 8,311.70 and 2,420.42

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Solution

The fourth proportional to 5,540.13, 8,311.70 and 2,420.42 is: 3,631.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.13 : 8,311.70 = 2,420.42 : x
  2. Step 2: Convert to fraction form
    5,540.13/8,311.70 = 2,420.42/x
  3. Step 3: Cross multiply
    5,540.13x = 8,311.70 × 2,420.42
  4. Step 4: Simplify right side
    5,540.13x = 20,117,804.91
  5. Step 5: Solve for x
    x = 20,117,804.91/5,540.13
  6. Step 6: Final answer
    x = 3,631.29

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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.