Home / 1,191.86-1,774.44-1,186.09

Finding the Fourth Proportional to 1,191.86, 1,774.44 and 1,186.09

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Solution

The fourth proportional to 1,191.86, 1,774.44 and 1,186.09 is: 1,765.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191.86 : 1,774.44 = 1,186.09 : x
  2. Step 2: Convert to fraction form
    1,191.86/1,774.44 = 1,186.09/x
  3. Step 3: Cross multiply
    1,191.86x = 1,774.44 × 1,186.09
  4. Step 4: Simplify right side
    1,191.86x = 2,104,635.48
  5. Step 5: Solve for x
    x = 2,104,635.48/1,191.86
  6. Step 6: Final answer
    x = 1,765.84

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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.