Home / 1,729.27-2,386.40-943.32

Finding the Fourth Proportional to 1,729.27, 2,386.40 and 943.32

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Solution

The fourth proportional to 1,729.27, 2,386.40 and 943.32 is: 1,301.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.27 : 2,386.40 = 943.32 : x
  2. Step 2: Convert to fraction form
    1,729.27/2,386.40 = 943.32/x
  3. Step 3: Cross multiply
    1,729.27x = 2,386.40 × 943.32
  4. Step 4: Simplify right side
    1,729.27x = 2,251,138.85
  5. Step 5: Solve for x
    x = 2,251,138.85/1,729.27
  6. Step 6: Final answer
    x = 1,301.79

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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.