Home / 1,176.80-1,765.22-1,141.25

Finding the Fourth Proportional to 1,176.80, 1,765.22 and 1,141.25

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Solution

The fourth proportional to 1,176.80, 1,765.22 and 1,141.25 is: 1,711.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.80 : 1,765.22 = 1,141.25 : x
  2. Step 2: Convert to fraction form
    1,176.80/1,765.22 = 1,141.25/x
  3. Step 3: Cross multiply
    1,176.80x = 1,765.22 × 1,141.25
  4. Step 4: Simplify right side
    1,176.80x = 2,014,542.79
  5. Step 5: Solve for x
    x = 2,014,542.79/1,176.80
  6. Step 6: Final answer
    x = 1,711.89

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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.