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Finding the Fourth Proportional to 5,659.68, 8,489.79 and 2,740.44

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Solution

The fourth proportional to 5,659.68, 8,489.79 and 2,740.44 is: 4,110.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,659.68 : 8,489.79 = 2,740.44 : x
  2. Step 2: Convert to fraction form
    5,659.68/8,489.79 = 2,740.44/x
  3. Step 3: Cross multiply
    5,659.68x = 8,489.79 × 2,740.44
  4. Step 4: Simplify right side
    5,659.68x = 23,265,760.11
  5. Step 5: Solve for x
    x = 23,265,760.11/5,659.68
  6. Step 6: Final answer
    x = 4,110.79

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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.