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Finding the Fourth Proportional to 5,819.93, 8,730.20 and 1,660.55

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Solution

The fourth proportional to 5,819.93, 8,730.20 and 1,660.55 is: 2,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,819.93 : 8,730.20 = 1,660.55 : x
  2. Step 2: Convert to fraction form
    5,819.93/8,730.20 = 1,660.55/x
  3. Step 3: Cross multiply
    5,819.93x = 8,730.20 × 1,660.55
  4. Step 4: Simplify right side
    5,819.93x = 14,496,933.88
  5. Step 5: Solve for x
    x = 14,496,933.88/5,819.93
  6. Step 6: Final answer
    x = 2,490.91

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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.