Home / 1,192.67-1,788.08-543.86

Finding the Fourth Proportional to 1,192.67, 1,788.08 and 543.86

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Solution

The fourth proportional to 1,192.67, 1,788.08 and 543.86 is: 815.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.67 : 1,788.08 = 543.86 : x
  2. Step 2: Convert to fraction form
    1,192.67/1,788.08 = 543.86/x
  3. Step 3: Cross multiply
    1,192.67x = 1,788.08 × 543.86
  4. Step 4: Simplify right side
    1,192.67x = 972,470.29
  5. Step 5: Solve for x
    x = 972,470.29/1,192.67
  6. Step 6: Final answer
    x = 815.37

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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.