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Finding the Fourth Proportional to 5,404.80, 8,108.80 and 1,706.88

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Solution

The fourth proportional to 5,404.80, 8,108.80 and 1,706.88 is: 2,560.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,404.80 : 8,108.80 = 1,706.88 : x
  2. Step 2: Convert to fraction form
    5,404.80/8,108.80 = 1,706.88/x
  3. Step 3: Cross multiply
    5,404.80x = 8,108.80 × 1,706.88
  4. Step 4: Simplify right side
    5,404.80x = 13,840,748.54
  5. Step 5: Solve for x
    x = 13,840,748.54/5,404.80
  6. Step 6: Final answer
    x = 2,560.83

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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.