Home / 1,177.70-1,767.39-949.34

Finding the Fourth Proportional to 1,177.70, 1,767.39 and 949.34

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Solution

The fourth proportional to 1,177.70, 1,767.39 and 949.34 is: 1,424.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.70 : 1,767.39 = 949.34 : x
  2. Step 2: Convert to fraction form
    1,177.70/1,767.39 = 949.34/x
  3. Step 3: Cross multiply
    1,177.70x = 1,767.39 × 949.34
  4. Step 4: Simplify right side
    1,177.70x = 1,677,854.88
  5. Step 5: Solve for x
    x = 1,677,854.88/1,177.70
  6. Step 6: Final answer
    x = 1,424.69

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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.