Home / 1,771.26-2,658.16-1,187.38

Finding the Fourth Proportional to 1,771.26, 2,658.16 and 1,187.38

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Solution

The fourth proportional to 1,771.26, 2,658.16 and 1,187.38 is: 1,781.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.26 : 2,658.16 = 1,187.38 : x
  2. Step 2: Convert to fraction form
    1,771.26/2,658.16 = 1,187.38/x
  3. Step 3: Cross multiply
    1,771.26x = 2,658.16 × 1,187.38
  4. Step 4: Simplify right side
    1,771.26x = 3,156,232.73
  5. Step 5: Solve for x
    x = 3,156,232.73/1,771.26
  6. Step 6: Final answer
    x = 1,781.91

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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.