Home / 5,699.80-8,543.30-3,729.21

Finding the Fourth Proportional to 5,699.80, 8,543.30 and 3,729.21

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Solution

The fourth proportional to 5,699.80, 8,543.30 and 3,729.21 is: 5,589.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,699.80 : 8,543.30 = 3,729.21 : x
  2. Step 2: Convert to fraction form
    5,699.80/8,543.30 = 3,729.21/x
  3. Step 3: Cross multiply
    5,699.80x = 8,543.30 × 3,729.21
  4. Step 4: Simplify right side
    5,699.80x = 31,859,759.79
  5. Step 5: Solve for x
    x = 31,859,759.79/5,699.80
  6. Step 6: Final answer
    x = 5,589.63

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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.