Home / 5,543.24-7,636.68-3,861.61

Finding the Fourth Proportional to 5,543.24, 7,636.68 and 3,861.61

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Solution

The fourth proportional to 5,543.24, 7,636.68 and 3,861.61 is: 5,319.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,543.24 : 7,636.68 = 3,861.61 : x
  2. Step 2: Convert to fraction form
    5,543.24/7,636.68 = 3,861.61/x
  3. Step 3: Cross multiply
    5,543.24x = 7,636.68 × 3,861.61
  4. Step 4: Simplify right side
    5,543.24x = 29,489,860.76
  5. Step 5: Solve for x
    x = 29,489,860.76/5,543.24
  6. Step 6: Final answer
    x = 5,319.96

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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.