Home / 1,727.56-2,589.50-1,178.38

Finding the Fourth Proportional to 1,727.56, 2,589.50 and 1,178.38

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Solution

The fourth proportional to 1,727.56, 2,589.50 and 1,178.38 is: 1,766.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.56 : 2,589.50 = 1,178.38 : x
  2. Step 2: Convert to fraction form
    1,727.56/2,589.50 = 1,178.38/x
  3. Step 3: Cross multiply
    1,727.56x = 2,589.50 × 1,178.38
  4. Step 4: Simplify right side
    1,727.56x = 3,051,415.01
  5. Step 5: Solve for x
    x = 3,051,415.01/1,727.56
  6. Step 6: Final answer
    x = 1,766.31

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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.