Home / 7,190.33-10,781.84-3,291.39

Finding the Fourth Proportional to 7,190.33, 10,781.84 and 3,291.39

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Solution

The fourth proportional to 7,190.33, 10,781.84 and 3,291.39 is: 4,935.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.33 : 10,781.84 = 3,291.39 : x
  2. Step 2: Convert to fraction form
    7,190.33/10,781.84 = 3,291.39/x
  3. Step 3: Cross multiply
    7,190.33x = 10,781.84 × 3,291.39
  4. Step 4: Simplify right side
    7,190.33x = 35,487,223.90
  5. Step 5: Solve for x
    x = 35,487,223.90/7,190.33
  6. Step 6: Final answer
    x = 4,935.41

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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.