Home / 1,177.76-1,633.06-1,138.73

Finding the Fourth Proportional to 1,177.76, 1,633.06 and 1,138.73

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Solution

The fourth proportional to 1,177.76, 1,633.06 and 1,138.73 is: 1,578.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.76 : 1,633.06 = 1,138.73 : x
  2. Step 2: Convert to fraction form
    1,177.76/1,633.06 = 1,138.73/x
  3. Step 3: Cross multiply
    1,177.76x = 1,633.06 × 1,138.73
  4. Step 4: Simplify right side
    1,177.76x = 1,859,614.41
  5. Step 5: Solve for x
    x = 1,859,614.41/1,177.76
  6. Step 6: Final answer
    x = 1,578.94

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.