Home / 5,618.28-8,425.97-1,668.61

Finding the Fourth Proportional to 5,618.28, 8,425.97 and 1,668.61

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Solution

The fourth proportional to 5,618.28, 8,425.97 and 1,668.61 is: 2,502.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.28 : 8,425.97 = 1,668.61 : x
  2. Step 2: Convert to fraction form
    5,618.28/8,425.97 = 1,668.61/x
  3. Step 3: Cross multiply
    5,618.28x = 8,425.97 × 1,668.61
  4. Step 4: Simplify right side
    5,618.28x = 14,059,657.80
  5. Step 5: Solve for x
    x = 14,059,657.80/5,618.28
  6. Step 6: Final answer
    x = 2,502.48

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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.