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Finding the Fourth Proportional to 3,254, 4,489.29 and 2,135.56

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Solution

The fourth proportional to 3,254, 4,489.29 and 2,135.56 is: 2,946.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,254 : 4,489.29 = 2,135.56 : x
  2. Step 2: Convert to fraction form
    3,254/4,489.29 = 2,135.56/x
  3. Step 3: Cross multiply
    3,254x = 4,489.29 × 2,135.56
  4. Step 4: Simplify right side
    3,254x = 9,587,148.15
  5. Step 5: Solve for x
    x = 9,587,148.15/3,254
  6. Step 6: Final answer
    x = 2,946.27

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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.