Home / 1,489.06-2,230.14-1,178.86

Finding the Fourth Proportional to 1,489.06, 2,230.14 and 1,178.86

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Solution

The fourth proportional to 1,489.06, 2,230.14 and 1,178.86 is: 1,765.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489.06 : 2,230.14 = 1,178.86 : x
  2. Step 2: Convert to fraction form
    1,489.06/2,230.14 = 1,178.86/x
  3. Step 3: Cross multiply
    1,489.06x = 2,230.14 × 1,178.86
  4. Step 4: Simplify right side
    1,489.06x = 2,629,022.84
  5. Step 5: Solve for x
    x = 2,629,022.84/1,489.06
  6. Step 6: Final answer
    x = 1,765.56

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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.