Home / 1,191.06-1,786.58-325.38

Finding the Fourth Proportional to 1,191.06, 1,786.58 and 325.38

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Solution

The fourth proportional to 1,191.06, 1,786.58 and 325.38 is: 488.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191.06 : 1,786.58 = 325.38 : x
  2. Step 2: Convert to fraction form
    1,191.06/1,786.58 = 325.38/x
  3. Step 3: Cross multiply
    1,191.06x = 1,786.58 × 325.38
  4. Step 4: Simplify right side
    1,191.06x = 581,317.40
  5. Step 5: Solve for x
    x = 581,317.40/1,191.06
  6. Step 6: Final answer
    x = 488.07

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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.