Home / 5,819.20-8,726.08-2,118.88

Finding the Fourth Proportional to 5,819.20, 8,726.08 and 2,118.88

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Solution

The fourth proportional to 5,819.20, 8,726.08 and 2,118.88 is: 3,177.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,819.20 : 8,726.08 = 2,118.88 : x
  2. Step 2: Convert to fraction form
    5,819.20/8,726.08 = 2,118.88/x
  3. Step 3: Cross multiply
    5,819.20x = 8,726.08 × 2,118.88
  4. Step 4: Simplify right side
    5,819.20x = 18,489,516.39
  5. Step 5: Solve for x
    x = 18,489,516.39/5,819.20
  6. Step 6: Final answer
    x = 3,177.33

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1.5x scale

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.