Home / 1,197.12-1,796.58-581.18

Finding the Fourth Proportional to 1,197.12, 1,796.58 and 581.18

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Solution

The fourth proportional to 1,197.12, 1,796.58 and 581.18 is: 872.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.12 : 1,796.58 = 581.18 : x
  2. Step 2: Convert to fraction form
    1,197.12/1,796.58 = 581.18/x
  3. Step 3: Cross multiply
    1,197.12x = 1,796.58 × 581.18
  4. Step 4: Simplify right side
    1,197.12x = 1,044,136.36
  5. Step 5: Solve for x
    x = 1,044,136.36/1,197.12
  6. Step 6: Final answer
    x = 872.21

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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.