Home / 1,729.30-2,386.40-943.36

Finding the Fourth Proportional to 1,729.30, 2,386.40 and 943.36

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Solution

The fourth proportional to 1,729.30, 2,386.40 and 943.36 is: 1,301.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.30 : 2,386.40 = 943.36 : x
  2. Step 2: Convert to fraction form
    1,729.30/2,386.40 = 943.36/x
  3. Step 3: Cross multiply
    1,729.30x = 2,386.40 × 943.36
  4. Step 4: Simplify right side
    1,729.30x = 2,251,234.30
  5. Step 5: Solve for x
    x = 2,251,234.30/1,729.30
  6. Step 6: Final answer
    x = 1,301.82

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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.