Home / 6,622.37-9,138.66-3,638.02

Finding the Fourth Proportional to 6,622.37, 9,138.66 and 3,638.02

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Solution

The fourth proportional to 6,622.37, 9,138.66 and 3,638.02 is: 5,020.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.37 : 9,138.66 = 3,638.02 : x
  2. Step 2: Convert to fraction form
    6,622.37/9,138.66 = 3,638.02/x
  3. Step 3: Cross multiply
    6,622.37x = 9,138.66 × 3,638.02
  4. Step 4: Simplify right side
    6,622.37x = 33,246,618.73
  5. Step 5: Solve for x
    x = 33,246,618.73/6,622.37
  6. Step 6: Final answer
    x = 5,020.35

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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.