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Finding the Fourth Proportional to 3,239.56, 4,856.28 and 2,655.82

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Solution

The fourth proportional to 3,239.56, 4,856.28 and 2,655.82 is: 3,981.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.56 : 4,856.28 = 2,655.82 : x
  2. Step 2: Convert to fraction form
    3,239.56/4,856.28 = 2,655.82/x
  3. Step 3: Cross multiply
    3,239.56x = 4,856.28 × 2,655.82
  4. Step 4: Simplify right side
    3,239.56x = 12,897,405.55
  5. Step 5: Solve for x
    x = 12,897,405.55/3,239.56
  6. Step 6: Final answer
    x = 3,981.22

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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.