Home / 1,279.88-1,764.96-1,192.52

Finding the Fourth Proportional to 1,279.88, 1,764.96 and 1,192.52

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Solution

The fourth proportional to 1,279.88, 1,764.96 and 1,192.52 is: 1,644.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279.88 : 1,764.96 = 1,192.52 : x
  2. Step 2: Convert to fraction form
    1,279.88/1,764.96 = 1,192.52/x
  3. Step 3: Cross multiply
    1,279.88x = 1,764.96 × 1,192.52
  4. Step 4: Simplify right side
    1,279.88x = 2,104,750.10
  5. Step 5: Solve for x
    x = 2,104,750.10/1,279.88
  6. Step 6: Final answer
    x = 1,644.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.