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Finding the Fourth Proportional to 5,980.22, 8,970.65 and 1,819.91

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Solution

The fourth proportional to 5,980.22, 8,970.65 and 1,819.91 is: 2,729.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,980.22 : 8,970.65 = 1,819.91 : x
  2. Step 2: Convert to fraction form
    5,980.22/8,970.65 = 1,819.91/x
  3. Step 3: Cross multiply
    5,980.22x = 8,970.65 × 1,819.91
  4. Step 4: Simplify right side
    5,980.22x = 16,325,775.64
  5. Step 5: Solve for x
    x = 16,325,775.64/5,980.22
  6. Step 6: Final answer
    x = 2,729.96

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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.