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Finding the Fourth Proportional to 4,992.91, 6,892.63 and 3,871.26

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Solution

The fourth proportional to 4,992.91, 6,892.63 and 3,871.26 is: 5,344.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.91 : 6,892.63 = 3,871.26 : x
  2. Step 2: Convert to fraction form
    4,992.91/6,892.63 = 3,871.26/x
  3. Step 3: Cross multiply
    4,992.91x = 6,892.63 × 3,871.26
  4. Step 4: Simplify right side
    4,992.91x = 26,683,153.14
  5. Step 5: Solve for x
    x = 26,683,153.14/4,992.91
  6. Step 6: Final answer
    x = 5,344.21

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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.