Home / 6,639.37-9,957.46-1,958.11

Finding the Fourth Proportional to 6,639.37, 9,957.46 and 1,958.11

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Solution

The fourth proportional to 6,639.37, 9,957.46 and 1,958.11 is: 2,936.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.37 : 9,957.46 = 1,958.11 : x
  2. Step 2: Convert to fraction form
    6,639.37/9,957.46 = 1,958.11/x
  3. Step 3: Cross multiply
    6,639.37x = 9,957.46 × 1,958.11
  4. Step 4: Simplify right side
    6,639.37x = 19,497,749.37
  5. Step 5: Solve for x
    x = 19,497,749.37/6,639.37
  6. Step 6: Final answer
    x = 2,936.69

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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.