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Finding the Fourth Proportional to 3,635.66, 5,455.10 and 1,903.88

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Solution

The fourth proportional to 3,635.66, 5,455.10 and 1,903.88 is: 2,856.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,635.66 : 5,455.10 = 1,903.88 : x
  2. Step 2: Convert to fraction form
    3,635.66/5,455.10 = 1,903.88/x
  3. Step 3: Cross multiply
    3,635.66x = 5,455.10 × 1,903.88
  4. Step 4: Simplify right side
    3,635.66x = 10,385,833.27
  5. Step 5: Solve for x
    x = 10,385,833.27/3,635.66
  6. Step 6: Final answer
    x = 2,856.66

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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.