Home / 4,911.30-7,361.09-3,422.45

Finding the Fourth Proportional to 4,911.30, 7,361.09 and 3,422.45

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Solution

The fourth proportional to 4,911.30, 7,361.09 and 3,422.45 is: 5,129.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.30 : 7,361.09 = 3,422.45 : x
  2. Step 2: Convert to fraction form
    4,911.30/7,361.09 = 3,422.45/x
  3. Step 3: Cross multiply
    4,911.30x = 7,361.09 × 3,422.45
  4. Step 4: Simplify right side
    4,911.30x = 25,192,962.47
  5. Step 5: Solve for x
    x = 25,192,962.47/4,911.30
  6. Step 6: Final answer
    x = 5,129.59

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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.