Home / 1,729.82-2,387.20-943.88

Finding the Fourth Proportional to 1,729.82, 2,387.20 and 943.88

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Solution

The fourth proportional to 1,729.82, 2,387.20 and 943.88 is: 1,302.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.82 : 2,387.20 = 943.88 : x
  2. Step 2: Convert to fraction form
    1,729.82/2,387.20 = 943.88/x
  3. Step 3: Cross multiply
    1,729.82x = 2,387.20 × 943.88
  4. Step 4: Simplify right side
    1,729.82x = 2,253,230.34
  5. Step 5: Solve for x
    x = 2,253,230.34/1,729.82
  6. Step 6: Final answer
    x = 1,302.58

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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.