Home / 2,389.09-3,572.97-1,796.56

Finding the Fourth Proportional to 2,389.09, 3,572.97 and 1,796.56

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Solution

The fourth proportional to 2,389.09, 3,572.97 and 1,796.56 is: 2,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.09 : 3,572.97 = 1,796.56 : x
  2. Step 2: Convert to fraction form
    2,389.09/3,572.97 = 1,796.56/x
  3. Step 3: Cross multiply
    2,389.09x = 3,572.97 × 1,796.56
  4. Step 4: Simplify right side
    2,389.09x = 6,419,054.98
  5. Step 5: Solve for x
    x = 6,419,054.98/2,389.09
  6. Step 6: Final answer
    x = 2,686.82

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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.