Home / 1,188.44-1,771.83-1,158.11

Finding the Fourth Proportional to 1,188.44, 1,771.83 and 1,158.11

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Solution

The fourth proportional to 1,188.44, 1,771.83 and 1,158.11 is: 1,726.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188.44 : 1,771.83 = 1,158.11 : x
  2. Step 2: Convert to fraction form
    1,188.44/1,771.83 = 1,158.11/x
  3. Step 3: Cross multiply
    1,188.44x = 1,771.83 × 1,158.11
  4. Step 4: Simplify right side
    1,188.44x = 2,051,974.04
  5. Step 5: Solve for x
    x = 2,051,974.04/1,188.44
  6. Step 6: Final answer
    x = 1,726.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.