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Finding the Fourth Proportional to 5,819.57, 8,730.72 and 1,659.63

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Solution

The fourth proportional to 5,819.57, 8,730.72 and 1,659.63 is: 2,489.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,819.57 : 8,730.72 = 1,659.63 : x
  2. Step 2: Convert to fraction form
    5,819.57/8,730.72 = 1,659.63/x
  3. Step 3: Cross multiply
    5,819.57x = 8,730.72 × 1,659.63
  4. Step 4: Simplify right side
    5,819.57x = 14,489,764.83
  5. Step 5: Solve for x
    x = 14,489,764.83/5,819.57
  6. Step 6: Final answer
    x = 2,489.84

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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.