Home / 1,191.94-1,787.91-1,136.58

Finding the Fourth Proportional to 1,191.94, 1,787.91 and 1,136.58

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Solution

The fourth proportional to 1,191.94, 1,787.91 and 1,136.58 is: 1,704.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191.94 : 1,787.91 = 1,136.58 : x
  2. Step 2: Convert to fraction form
    1,191.94/1,787.91 = 1,136.58/x
  3. Step 3: Cross multiply
    1,191.94x = 1,787.91 × 1,136.58
  4. Step 4: Simplify right side
    1,191.94x = 2,032,102.75
  5. Step 5: Solve for x
    x = 2,032,102.75/1,191.94
  6. Step 6: Final answer
    x = 1,704.87

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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.