Home / 7,106.09-9,806.42-3,962.21

Finding the Fourth Proportional to 7,106.09, 9,806.42 and 3,962.21

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Solution

The fourth proportional to 7,106.09, 9,806.42 and 3,962.21 is: 5,467.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.09 : 9,806.42 = 3,962.21 : x
  2. Step 2: Convert to fraction form
    7,106.09/9,806.42 = 3,962.21/x
  3. Step 3: Cross multiply
    7,106.09x = 9,806.42 × 3,962.21
  4. Step 4: Simplify right side
    7,106.09x = 38,855,095.39
  5. Step 5: Solve for x
    x = 38,855,095.39/7,106.09
  6. Step 6: Final answer
    x = 5,467.86

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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.