Home / 5,192.21-7,786.40-2,726.78

Finding the Fourth Proportional to 5,192.21, 7,786.40 and 2,726.78

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Solution

The fourth proportional to 5,192.21, 7,786.40 and 2,726.78 is: 4,089.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,192.21 : 7,786.40 = 2,726.78 : x
  2. Step 2: Convert to fraction form
    5,192.21/7,786.40 = 2,726.78/x
  3. Step 3: Cross multiply
    5,192.21x = 7,786.40 × 2,726.78
  4. Step 4: Simplify right side
    5,192.21x = 21,231,747.23
  5. Step 5: Solve for x
    x = 21,231,747.23/5,192.21
  6. Step 6: Final answer
    x = 4,089.15

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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.