Home / 7,126.62-9,834.72-3,982.81

Finding the Fourth Proportional to 7,126.62, 9,834.72 and 3,982.81

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Solution

The fourth proportional to 7,126.62, 9,834.72 and 3,982.81 is: 5,496.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.62 : 9,834.72 = 3,982.81 : x
  2. Step 2: Convert to fraction form
    7,126.62/9,834.72 = 3,982.81/x
  3. Step 3: Cross multiply
    7,126.62x = 9,834.72 × 3,982.81
  4. Step 4: Simplify right side
    7,126.62x = 39,169,796.58
  5. Step 5: Solve for x
    x = 39,169,796.58/7,126.62
  6. Step 6: Final answer
    x = 5,496.27

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1.5x scale

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.