Home / 1,729.89-2,387.26-943.95

Finding the Fourth Proportional to 1,729.89, 2,387.26 and 943.95

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Solution

The fourth proportional to 1,729.89, 2,387.26 and 943.95 is: 1,302.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.89 : 2,387.26 = 943.95 : x
  2. Step 2: Convert to fraction form
    1,729.89/2,387.26 = 943.95/x
  3. Step 3: Cross multiply
    1,729.89x = 2,387.26 × 943.95
  4. Step 4: Simplify right side
    1,729.89x = 2,253,458.90
  5. Step 5: Solve for x
    x = 2,253,458.90/1,729.89
  6. Step 6: Final answer
    x = 1,302.66

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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.