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Finding the Fourth Proportional to 5,661.59, 8,489.15 and 2,371.91

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Solution

The fourth proportional to 5,661.59, 8,489.15 and 2,371.91 is: 3,556.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.59 : 8,489.15 = 2,371.91 : x
  2. Step 2: Convert to fraction form
    5,661.59/8,489.15 = 2,371.91/x
  3. Step 3: Cross multiply
    5,661.59x = 8,489.15 × 2,371.91
  4. Step 4: Simplify right side
    5,661.59x = 20,135,518.03
  5. Step 5: Solve for x
    x = 20,135,518.03/5,661.59
  6. Step 6: Final answer
    x = 3,556.51

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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.