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Finding the Fourth Proportional to 5,657.89, 8,487.74 and 2,149.37

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Solution

The fourth proportional to 5,657.89, 8,487.74 and 2,149.37 is: 3,224.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,657.89 : 8,487.74 = 2,149.37 : x
  2. Step 2: Convert to fraction form
    5,657.89/8,487.74 = 2,149.37/x
  3. Step 3: Cross multiply
    5,657.89x = 8,487.74 × 2,149.37
  4. Step 4: Simplify right side
    5,657.89x = 18,243,293.72
  5. Step 5: Solve for x
    x = 18,243,293.72/5,657.89
  6. Step 6: Final answer
    x = 3,224.40

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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.