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Finding the Fourth Proportional to 5,892.72, 8,131.68 and 3,239.64

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Solution

The fourth proportional to 5,892.72, 8,131.68 and 3,239.64 is: 4,470.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,892.72 : 8,131.68 = 3,239.64 : x
  2. Step 2: Convert to fraction form
    5,892.72/8,131.68 = 3,239.64/x
  3. Step 3: Cross multiply
    5,892.72x = 8,131.68 × 3,239.64
  4. Step 4: Simplify right side
    5,892.72x = 26,343,715.80
  5. Step 5: Solve for x
    x = 26,343,715.80/5,892.72
  6. Step 6: Final answer
    x = 4,470.55

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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.