Home / 6,639.19-9,958.79-2,743.70

Finding the Fourth Proportional to 6,639.19, 9,958.79 and 2,743.70

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Solution

The fourth proportional to 6,639.19, 9,958.79 and 2,743.70 is: 4,115.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.19 : 9,958.79 = 2,743.70 : x
  2. Step 2: Convert to fraction form
    6,639.19/9,958.79 = 2,743.70/x
  3. Step 3: Cross multiply
    6,639.19x = 9,958.79 × 2,743.70
  4. Step 4: Simplify right side
    6,639.19x = 27,323,889.19
  5. Step 5: Solve for x
    x = 27,323,889.19/6,639.19
  6. Step 6: Final answer
    x = 4,115.55

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1.5x scale

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.