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Finding the Fourth Proportional to 6,445.78, 8,894.64 and 5,975.62

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Solution

The fourth proportional to 6,445.78, 8,894.64 and 5,975.62 is: 8,245.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445.78 : 8,894.64 = 5,975.62 : x
  2. Step 2: Convert to fraction form
    6,445.78/8,894.64 = 5,975.62/x
  3. Step 3: Cross multiply
    6,445.78x = 8,894.64 × 5,975.62
  4. Step 4: Simplify right side
    6,445.78x = 53,150,988.68
  5. Step 5: Solve for x
    x = 53,150,988.68/6,445.78
  6. Step 6: Final answer
    x = 8,245.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.