Home / 3,635.75-5,455.45-1,445.11

Finding the Fourth Proportional to 3,635.75, 5,455.45 and 1,445.11

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Solution

The fourth proportional to 3,635.75, 5,455.45 and 1,445.11 is: 2,168.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,635.75 : 5,455.45 = 1,445.11 : x
  2. Step 2: Convert to fraction form
    3,635.75/5,455.45 = 1,445.11/x
  3. Step 3: Cross multiply
    3,635.75x = 5,455.45 × 1,445.11
  4. Step 4: Simplify right side
    3,635.75x = 7,883,713.52
  5. Step 5: Solve for x
    x = 7,883,713.52/3,635.75
  6. Step 6: Final answer
    x = 2,168.39

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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.